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Parts index — Singer 20Utap a row to open its page

Page 2

Singer 20U parts on page 2
RefPart numberPart nameQty
541908COVER
504083SHAFT
11170COLLAR
505343SPRING
545092SCREW(2)
541709BRACKET
52024PIN
52130SCREW
541708STUD
504134BRACKET
541922BRACKET
540472PLATE
504010SCREW
541698SPRING
541959PIN
541759SHAFT
541566BRACKET
541620PLATE
541619BRACKET
154884SPRING
541789SPRING(2)
691SCREW(2)
541772BRACKET
154785PIN
541936PLATE
541784SHAFT
504084SCREW
504056LEVER
505658SPRING
541771BRACKET
505351SPRING
505354SPRING
505355SPRING
505353PLATE
504086SCREW
541676BRACKET
541677BRACKET
541678BRACKET
541675BRACKET
541764BRACKET
55623WASHER
5404048BRACKET
52454BRACKET
541701SHAFT
541930SHAFT
541933PIN
541788BRACKET
541667SPRING
504114SCREW
541787BRACKET
541700SHAFT
549354PIN
541673BRACKET
541694BRACKET
504090SCREW(4)
504007BRACKET(3)
541674BRACKET
541693BRACKET
541692SHAFT
541689BRACKET
541680BRACKET
541765BRACKET
504088SCREW(3)
541902BRACKET
541770BRACKET
549336SCREW(2)
541682BRACKET
541665SPRING
504081BRACKET
541664BRACKET
541685BRACKET
541789SPRING
541927BRACKET
504010SCREW(2)
541753SHAFT
505339SPRING
541607BRACKET
504133BRACKET
541605BRACKET
504120PIN
99686COLLAR
504095BRACKET
541702SHAFT
541703SHAFT
545499COLLAR
45339COLLAR
125314SPRING
2102COLLAR
549857BRACKET
549858BRACKET
541704SHAFT
545498COLLAR
504028SCREW
541940PIN
541941BRACKET
541753SHAFT
541645BRACKET
504028SCREW
504069BRACKET
504070BRACKET
99646COLLAR
541606BRACKET
504066SHAFT(2)
541751BRACKET
541697BRACKET
541606BRACKET
541610BRACKET
154759PIN
505335SPRING
541610BRACKET
505322SHAFT
505334SPRING
504019SCREW
505408SHAFT
504072SCREW
505333SHAFT
541646SHAFT
505407BRACKET
504502SCREW
504068BRACKET
541683SHAFT
541923PIN
504002SHAFT
541648SHAFT
505408SHAFT
504072SCREW
504504SCREW
541685BRACKET
541909BRACKET
505327SPRING
541778BRACKET
541775BRACKET
504071BRACKET
545931COLLAR
541779BRACKET
504099SCREW
541762COVER
541949PIN
541762COVER
541948BRACKET
549336SCREW(2)
505314PIN
541630BRACKET
541912BRACKET
545354SPRING
541916BRACKET
545495BRACKET
541652BRACKET
541650BRACKET
541637BRACKET
504074BRACKET
541712BRACKET
54PIN
541759SHAFT
541950BRACKET
549366BRACKET
541925BRACKET
541762COVER
541943SHAFT
504067BRACKET
504005-451BRACKET
154756COLLAR
505009COLLAR
541948BRACKET
541786WHEEL
541904BRACKET
505314PIN
54PIN
549387BRACKET
545820PIN
540435BRACKET
504094BRACKET
541650BRACKET
545814COLLAR
549289SHAFT
45339COLLAR
541699BRACKET
504101SCREW
545498COLLAR
154981BRACKET
505326BRACKET
504019SCREW
545767SHAFT
504101SCREW(2)
504071BRACKET(2)
541695SHAFT
541608SHAFT
541686SHAFT
504002SHAFT
541924PIN
545056BRACKET
504007BRACKET(2)
541693BRACKET
541688SHAFT
541690BRACKET
504010SCREW

Page 3 — ACCESSORIES AND ATTACHMENTS

Singer 20U parts on page 3
RefPart numberPart nameQty
549389549389SCREW
504509504509WASHER
542043542043SPRING
541817541817ARM
504084504084SHAFT
548061548061PIN
541918541918ROD
4191541915BRACKET
19131913BRACKET
505384505384BRACKET
505419505419SPRING
505418505418SHAFT
5607356073SHAFT
948948BRACKET
541935541935BRACKET
541631541631BRACKET
545246(2)545246(2)SCREW
541634541634BRACKET
541910541910BRACKET
549288(21)549288(21)SCREW
541641541641BRACKET
541756541756BRACKET
541642541642BRACKET
541754541754BRACKET
541636541636SCREW
541749541749BRACKET
541635541635SCREW
549119549119SCREW
541750541750BRACKET
823823BRACKET
541774541774BRACKET
285285BRACKET
504507504507SCREW
541911541911BRACKET
547671547671SCREW
545047545047BRACKET
505001(2)505001(2)SCREW
549294549294SCREW
504167504167SCREW
545035(2)545035(2)SCREW
546922546922"A" OIL
546923546923"B" OIL
55623(5)55623(5)CAP
540169-701540169-701CAP
540165-701540165-701CAP
540161-701540161-701CAP
541558541558SCREW DRIVER
541561541561TOOL
541514541514SCREW DRIVER
541937541937BRACKET
549281-001549281-001BRACKET
541515-001541515-001BRACKET
541734541734BRACKET
541516-001541516-001BRACKET
541736-001541736-001BRACKET
541781541781PRESSER FOOT
505643505643PRESSER FOOT
505655-001505655-001UNIVERSAL BOBBIN WINDER
541739541739BRACKET
541742541742BRACKET
541741541741BRACKET
541738541738SHAFT
547671547671SCREW
505008505008BRACKET
541740541740BRACKET
545413545413SCREW

Page 4 — NUMERICAL LIST OF PARTS FOR 20011/13 "M"/CS

Singer 20U parts on page 4
RefPart numberPart nameQty
691 (650)Throat Plate Screw (2)
2102Tension Disc (2)
11170Presser bar Spring washer
52618Clamp Stop Motion Clamp Flange
32758Thread Take-up Spring
36555Thread Cutter and Holder
45339Feed Regulating Stud Head Pin
45339Presser bar Lifter
52016Thread Take-up Lever Thread Eyelet Bushing
52024Thread Take-up Lever Thread
52150Rotating hook Bobbin
52454Thread Retainer Pin
55623Presser Bar Spring
56024Feed Connecting Link
56046Presser Bar Spring
56073Bell Crank Spring
99646Arm Shaft (horizontal) Flanged Bushing (back)
99686Presser Bar Lifter
99691Tension Indicator Flange Washer
125314Tension Spring
154756 (851)Clamp Stop Motion Clamp Stop Screw
154759 (850)Feed Connecting Link Hinge Screw
154759 (850)Feed Forked Connection Hinge Screw
154759 (850)Feed Lifting Rock Shaft Crank Connecting Rod Hinge Screw
154785Bed Plate Bracket Screw (2)
154759 (809)Bed Slide Spring Screw (2)
154884Bed Slide Spring
154981 (819)Feed Connecting Link Hinge Screw
154981 (819)Feed Forked Connection Hinge Screw
154981 (819)Feed Lifting Rock Shaft Crank Connecting Rod Hinge Screw Nut
504002 (850)Rotating Hook Drive Shaft Bushing (back) Screw
504002 (850)Rotating Hook Drive Shaft Bushing (front) Set Screw
504002 (850)Thread Take-up Lever Link Hinge Pin Set Screw
504002 (850)Thread Take-up Lever Regulator Set Screw
504005-451Clamp Stop Motion Clamp Screw (Spec. No. 1030 Chrome Nickel Satin Finish)
504007 (850)Rotating Hook Set Screw (3)
504007 (850)Rotating Hook Set Screw (2)
504010 (851)Needle Bar Connecting Link Screw
504010 (851)Rotating Hook Shaft Bevel Gear Cover Screw
504019 (850)Feed (Upper) (Lower) Screw
504019 (850)Feed Lifting Rock Shaft Crank Screw
504028 (850)Arm Shaft (horizontal) Flanged Bushing (back) set Screw
504028 (850)Arm Shaft (horizontal) Worm Gear Set Screw (2)
504028 (850)Presser Bar Guide Bracket Screw
504029 (850)ZigZag Triangular Cam Shaft Bushing Set Screw
504032 (805)Rotating Hook Bobbin Case Latch Stop Screw
504047 (830)Tension Stud Set Screw
504048Bight Amplitude Slide Block Shaft Bushing Collar Screw (Spec. No. 1050) (2)
504048Rotating Hook Drive Shaft Retainer Collar Screw
504048 (850)Thread Retainer Set Screw
504056 (830)Presser Bar Lifter Pin Set Screw
504057 (805)Needle Bar Connecting Link Cap Screw
504063 (825)Presser Foot Screw
504066 (830)Arm Shaft (horizontal) Bevel Gear Set Screw (2)
504068 (803)Feed Bar Screw Center (2)
504069 (833)Feed and Feed Lifting Eccentric Position Screw
504070 (833)Feed and Feed Lifting Eccentric Set Screw
504071 (833)Arm Top Cover Screw (back)
504071 (833)Feed Lifting Rock Shaft Crank Connecting Rod Cap Screw (2)
504071 (833)Feed Reverse Lever Link Clamping Screw
504072 (803)Feed Lifting Rock Shaft Screw Center (2)
504074 (852)Feed Regulating Stud Head Screw
504077 (803)Needle Bar Connecting Link Adjusting Screw
504083 (852)Presser Regulating Thumb Screw
504084 (810)Bight Amplitude Stop Plate (left) (right) Screw (2)
504084 (810)Rotating Hook Bobbin Case Holder Position Bracket
504086 (806)Rotating Hook Bobbin Case Tension Regulating Screw
504087 (806)Rotating Hook Bobbin Case Spring Screw
504088 (803)Rotating Hook Section Screw (3)
504090 (803)Rotating Hook Thread Guard Screw (4)
504091 (810)Needle Bar Set Screw
504094 (850)Feed Regulating Stud Set Screw
504095 (850)Thread Take-up Crank Position Screw
504099 (809)Bell Crank Set Screw
504099 (809)Feed Reverse Lever Return Spring Bracket Screw
504101 (850)Arm Shaft (horizontal) Flanged Bushing (front) Screw (2)
504101 (850)Rotating Hook Drive Shaft Bevel Gear (back) Set Screw (2)
504101 (850)Rotating Hook Drive Shaft Bevel Gear (front) Screw (2)
504101 (850)Rotating Hook Shaft Bevel Gear Set Screw (2)
504101 (850)Thread Take-up Crank Set Screw
504102 (830)Arm Shaft (upright) Bevel Gear (upper) Set Screw
504114 (809)Needle Clamp Thread Guard Set Screw
504120 (803)Needle Bar Set Screw
504133 (850)Arm Shaft (horizontal) Flanged Bushing (front) Set Screw
504134 (850)Needle Bar Frame Pin Set Screw
504145 (809)Bight and L-C-R Position Lever Set Screw (2)
504145 (809)Thread Take-up Lever Guard Set Screw
504167 (805)Feed Regulator Set Screw (small)
504167 (805)Arm Screw (small)
504169 (809)Feed Connecting Rod Nut (2)
504170 (810)Feed Lifting Hook Shaft Center Nut (2)
504171 (819)Feed Lifting Hook Shaft Screw Center Nut (2)
504172 (809)Bight and L-C-R Position Lever Thumb Stud Nut
504173 (809)Feed Lifting Rock Shaft Roller and Stud
504174 (809)Feed Lifting Rock Shaft Roller and Stud
504175 (809)Feed Lifting Rock Shaft Roller and Stud
505000Clamp Stop Motion Clamp washer
505001Feed Oil Tube (for Feed Forked Connection)
505322Feed Forked Connection
505323Feed Lifting Rock Shaft Crank with 504019
505327Feed Lifting Rock Shaft Crank Connecting Rod with 504019
505328Feed Lifting Rock Shaft Crank Connecting Rod Cap (felt)
505333Feed Rock Shaft
505335Feed Rock Shaft Complete, Nos. 505333 and 505335
505335Feed Rock Shaft Crank with 504019 and 504120
505353Presser Bar Guide Bracket with 504028
505354Rotating Hook Bobbin Case Latch, Nos. 505353, 505354 and 505355
505353Rotating Hook Bobbin Case Latch
505354Rotating Hook Bobbin Case Latch Lever
505355Rotating Hook Bobbin Case Latch Lever Fulcrum Pin
505356Rotating Hook Bobbin Case Latch Spring
505372Thread Take-up Lever Link Hinge Pin
505374Thread Take-up Spring Regulator
505384Bell Crank Complete, Nos. 505373, 505417, 505418 and 505419
505407Feed Bar Screw Center 504068 with 504502 (2)
505408Feed Lifting Rock Shaft Screw Center 504072 with 504504 (2)
505408Feed Lifting Rock Shaft Screw Center 504072 with 504504 (2)
505408Thread Take-up Spring Regulator 504047 with 505374
505417Bell Crank Bracket
505418Bell Crank Bracket
505419Bell Crank Bracket
505427Rotating Hook Drive Shaft Retainer Collar with two 504086
504028Arm Shaft (horizontal) Flanged Bushing (front)
505658Presser Bar Lifter Pin
540435Feed Rock Shaft Stud Lock Pin
541566Presser Foot (spring hinged) Complete
541605Arm Shaft (horizontal)
541606Arm Shaft (horizontal) Bevel Gear with two 504066
541607Arm Shaft (horizontal) Worm Gear with two 504028
541608Arm Shaft (upright)
541609Arm Shaft (upright) Bevel Gear (lower) with two 504101
541610Arm Shaft (upright) Bevel Gear (upper) with two 504101
541611Arm Side Cover
541619Bed Slide
541620Bed Slide Complete, Nos. 154884, 541619 and two 154789
541623Bight and L-C-R Position Lever Complete, Nos. 545413 and 549285
541630Bight Amplitude Regulating Plate Spring
541631Bight Amplitude Slide Block
541634Bight Amplitude Slide Block Crank Link
541635Bight Amplitude Slide Block Crank Shaft
541636Bight Amplitude Slide Block Crank Shaft Bushing

Page 5 — NUMERICAL LIST OF PARTS FOR 20U11/13 M/CS

Singer 20U parts on page 5
RefPart numberPart nameQty
541637Right Amplitude Slide Block Crank Shaft Bushing
541638Right Amplitude Slide Block Crank Spring
541639Right Amplitude Slide Block Guide with 545098
541641Right Amplitude Slide Block Guide Stud
541642Feed and Feed Lifting Eccentric with 504069
541643and 504070
541646Feed Bar
541647Feed Dog
541648Feed Lifting Rock Shaft with 504751
541649Feed Lifting Rock Shaft Complete, Nos. 505326 and 541648
541650Feed Regulator Stud Head with 45539
541651Feed Regulator with 545045
541652Feed Regulator Hinge Stud
541653Feed Regulator Hinge Stud Flanged Bushing
541654Feed Regulator Lever with 5040
541657Needle Bar (hollow)
541661Needle Bar Connecting Stud
541662Needle Bar Connecting Stud Complete, Nos. 504091
541664Needle Bar Connecting Stud Hinge Pin
541665Needle Bar Connecting Stud Hinge Pin Washer
541667Needle Clamp
541671Rotating Hook with three 504088
541675Rotating Hook Complete, Nos. 541671, 541694 541765 three 504088 and 504090 (for agents only)
541674Rotating Hook 541673 with 541680
541675Rotating Hook 541674 with 541675
541676Rotating Hook Bobbin Case with 504086, 541764
541677Rotating Hook Bobbin Case Complete, Nos. 504032 and 541764
541678Rotating Hook Bobbin Case Holder
541680Rotating Hook Drive Shaft
541682Rotating Hook Drive Shaft Bevel Gear (back)
541684with two 504101
541685Rotating Hook Drive Shaft Bevel Gear (front) with two 504101
541686Rotating Hook Drive Shaft Bushing (back)
541688Rotating Hook Shaft Bevel
541689Rotating Hook Shaft Bevel Gear with two 504101
541690Rotating Hook Shaft Bevel Gear (front)
541692Rotating Hook Shaft Bushing (short)
541693Rotating Hook Shaft Retainer Collar with two 504007 (2)
541694Rotating Hook Thread Guard
541695Set of Gears (lower, back) Nos. 541609 and 541684
541696Set of Gears (lower, front) Nos. 541685 and 541690
541697Set of Gears (upper) Nos. 541606 and 541610
541698Slack Thread Regulator
541699Tension Complete, Nos. 3273, 505400, 541702, 541704, 541704, 541705, 125314 and two 2102
541700Tension Releasing Lever
541701Tension Releasing Lever Spring
541702Tension Releasing Pin
541703Tension Stud
541704Tension Stud 541703 with 545498 and 545499
541707Thread Take-up Lever
541708Thread Take-up Lever with 52130
541709Thread Take-up Lever Complete, Nos. 52024 and 541708
541711Zigzag Stitch Regulator Fork
541712Zigzag Stitch Regulator Fork Eccentric Connection
541723Presser Bar Lifting Bracket with 541723 and 549550
541725Presser Bar Lifting Shaft
541749Right Amplitude Slide Block Crank Shaft Bushing Washer
541750Right Amplitude Slide Block Crank Shaft Ring
541751Feed Forked Connection 505322 541651, two 154759 and 154981
541753Arm Shaft (horizontal) and Needle Bar Crank Complete Nos. 505339 and 541605
541754Right Amplitude Slide Block Crank Shaft Knob 541774 with 541635, 541750 and 549119
541756Right Amplitude Slide Block Guide 541641 with 541631
541759Needle Bar Frame Clamping Stud
541762Arm Top Cover Spool Holder
541764Rotating Hook Bobbin Case Tension Spring
541765Rotating Hook Section
541770Needle Bar Timing Indicator Plate
541771Bed Plate
541772Bed Plate Bracket
541773Bed Plate Complete, Nos. 541771 with 541772 and 504069
541774Right Amplitude Slide Block Crank Shaft Knob
541775Feed Reverse Lever Return Spring
541779Feed Reverse Lever Link with 504071
541780Feed Reverse Lever Return Spring Bracket (hook)
541784Feed Reverse Lever Hinge Stud
541786Rotating Hook Bobbin Case Holder Position Bracket
541787541788
541789Needle Clamp Thread Guard
541790Needle Clamp Complete, Nos. 504027, 504114, and 541787
541904Arm Top Cover (cotton)
541762Arm Top Cover (cotton)
541905Arm Top Cover Complete, Nos. 505314, 541762 and 541764
541908Face Plate with 546761
541909Right and L-R Position Lever Arm
541910Right and L-R Position Lever Arm
541911Right and L-R Position Lever Thumb Stud (Spec. No. 1019)
541912Right Amplitude Regulating Plate (left)
541913Right Amplitude Regulating Plate (right)
541915Right Amplitude Regulating Plate Holder and Right Amplitude Regulating Plate Complete, Nos. 541630, 541912, 541913, and 541946
541916Right Amplitude Stop Plate (left) (right) (2)
541917Lever Connecting Rod
541918Lever Connecting Rod
541921Needle Bar Frame
541922Needle Bar Frame Pin
541923Needle Bar Frame Shaft (long)
541924Rotating Hook Drive Shaft Bushing (front)
541925Needle Bar Connecting Link
541927Needle Bar Connecting Link Guide
541928Right Amplitude Slide Block Crank 541935 with 541612, 541750, 541918, and two 549288
541930Arm Shaft (hollow) 541657 with 541933
541931Needle Bar Connecting Link with 54077
541932Needle Bar Connecting Link 541930 with 541002
541933Arm Shaft (hollow)
541935Needle Bar Frame Shaft Bushing (long)
541936Take-up Lever Guard
541940Bar Connecting Link Guide
541941Right Amplitude Slide Block Crank with two 545246
541943Triangular Cam Shaft
541946Triangular Cam Shaft Bushing
541948Triangular Cam with two 549566
541949Right Amplitude Regulating Plate Holder.
541950Arm Top Cover (back) U-ring
541956Arm Top Cover (back) U-ring
542043Reinforcement Plate
545001 (819)Lifting Lever Connecting Rod Spring
545035 (805)Needle Bar Connecting Stud Hinge Pin Screw
545045 (835)Screw (2)
545046 (809)Feed Reverse Lever Stud Set Screw
545056 (835)Feed Reverse Lever Set Screw
545056 (835)Rotating Hook Shaft Bushing (short) Set Screw
545082 (803)Rotating Hook Shaft Bushing (long) Set Screw
545092 (810)Right and L-C-R Position Block Set Screw (2)
545098 (850)Right and L-C-R Position Lever Set Screw
545098 (850)Right Amplitude Slide Block Guide Stud Set Screw
545114Arm Top Cover (back) U-ring
545218 (852)Arm Top Cover (back) U-ring
545246 (806)Right Amplitude Slide Block Guide Stud Set Screw
545260 (806)Tension Spring
545335 (819)Arm Reinforcement Plate Screw
545354 (804)Right Amplitude Slide Block Crank Set Screw (2)
545413 (803)Tension Releasing Lever Hinge Screw
545495Tension Spring
545498Tension Spring
545499 (873)Tension Spring
545766Arm Shaft Bushing (lower)
545767Arm Shaft (upright) Bushing (lower)
545814Arm Shaft (upright) Bushing (upper)
545820Regulating Stud Bushing
545825Regulating Stud Lock Pin Spring
546701Arm Top Cover Screw (front) U-ring
547671Needle Bar Frame Clamping Stud Flanged Bushing
547672Low Latch Roller (roller)
547674Right and L-C-R Position Lever Thumb Stud Nut Washer

Page 6 — NUMERICAL LIST OF PARTS FOR 20U113 P/Cs

Singer 20U parts on page 6
RefPart numberPart nameQty
548061Right Amplitude Stop Plate (left) (right)
549119 (850)Bight Amplitude Slide Block Crank Shaft Knob Set Screw
549285 (803)Bight and L-C-R Position Lever Screw Pin
549285 (830)Bight Amplitude Slide Block Crank Link Hinge Screw (2)
549289 (803)Feed Regulating Stud
549290 (819)Zigzag Stitch Regulator For Eccentric Connection Pin Set Screw
549294 (805)Presser Bar Lifting Shaft Link Hinge Screw
549330 (825)Arm Side Cover Set Screw (2)
549336 (825)Needle Bar Timing Indicator Plate Screw (2)
549336 (825)Needle Bar Frame Clamping Stud Screw
549349 (856)Arm Reinforcement Plate Screw
549354Needle Bar Frame Clamping
549356 (850)Bight Amplitude Regulating Set Screw (2)
549366Zigzag Triangular Cam Shaft Set Screw (2)
549365 (850)Feed Dog Screw (2)
549385Bight Amplitude Regulating Plate Thumb Screw (Spec. No. 1019) (2)
549387Bight and L-C-R Position Lever Arm Regulating Screw (Spec. No. 1050) (2)
549389Lifting Lever Hinge Screw (Spec. No. 1050)
549426Bight and L-C-R Position Block Washer (2)
549857Tension Indicator
549858Tension Indicator Flange
CAT-1955Needle (size #14) with Pootoon C.A.L.
12403Arm Spool Pin and Thread Eyelet
55623Rotating Hook Bobbin (5)
505643Presser Foot (spring hinged) Complete (for straight stitching)
540101-701Arm Top Spool Seat Complete
540165-701Arm Top Cover Spool holder Thread Lead-off (large) Complete
540169-701Arm Top Cover Spool holder Thread Lead-off (small) Complete
541514Screw Driver (small)
541515-001Cloth Guide (purchased part)
541516-001Hemmer Foot (1/8 inch) (purchased part)
541558Screw Driver (large)
541561Screw Driver (for throat plate)
541734Feed Dog (for straight stitching)
541736-001Zipper Foot (purchased part)
541781Presser Foot (spring hinged) Complete (for buttonholing)
541782Throat Plate (for straight stitching)
541937Oiler (130 cc, filled with Singer type "A" oil) (for treadle drive)
546923Oiler (130 cc, filled with Singer type "B" oil) (for electric drive)
549271-001Cloth Guide Screw (purchased part)
CAT-1955Needle (size #14) with Pootoon C.A.L. (3)
505008Bobbin Winder Spool Pin Fastener (felt)
505055-001Bobbin Winder Spool Pin Set (include two wood screw) (purchased assembly)
541738Bobbin Winder Spool Pin
541740Bobbin Winder Spool Pin Complete Nos. 505008, 541738, 541740, 541742, 505011 and 547671
541741Bobbin Winder Spool Pin Set
541742Bobbin Winder Spool Presser Plate (body)
541743Bobbin Winder Spool Presser Plate Complete Nos. 541741 and 541743
541743Bobbin Winder Spool Presser Plate C-Ring
545413 (850)Bobbin Winder Spool Pin Nut
547671Bobbin Winder Spool Pin Spring Washer

Singer 20U — parts catalog

Page 1 — MACHINE PARTS CHART for SINGER 20u

FORM U209 REV. (1273) MACHINE PARTS CHART for SINGER 20 U * A Trademark of THE SINGER COMPANY Copyright C 1973 THE SINGER COMPANY All Rights Reserved Throughout the World From the library of: Superior Sewing Machine & Supply LLC jintex.in

Page 2

SINGER 20U 541908 504083 11170 505343 545092(2) 541709 52024 52130 541708 504134 541922 540472 504010 541698 541959 541759 541566 541620 541619 154884 541789(2) 691(2) 541772 541936 541784 504084 504056 505658 541771 505351 505354 505355 505353 504086 541676 541677 541678 541675 541764 55623 5404048 52454 541701 541930 541933 541788 541667 504114 541787 541700 549354 541673 541694 504090 (4) 504007(3) 541674 541693 541692 541689 541680 541765 504088(3) 541902 541770 549336 (2) 541682 541665 504081 541664 541685 541789 541927 504010(2) CAT.1955 541753 505339 541607 504133 541605 504120 99686 504095 541702 541703 545499 45339 125314 2102 549857 549858 541704 545498 504028 541940 541941 541753 541645 504028 504069 504070 99646 541606 504066(2) 541751 541697 541606 541610 154759 505335 541610 505322 505334 504019 505408 504072 505333 541646 505407 504502 504068 541683 541923 504002 541648 505408 504072 504504 541685 541909 505327 541778 541775 504071 545931 541779 504099 541762 541949 541762 541948 549336(2) 505314 541630 541912 545354 541916 545495 541652 541650 541637 504074 541712 541759 541950 549366 541925 541762 541943 504067 504005-451 154756 505009 541948 541786 541904 505314 54 5419387 545820 540435 504094 545814 549289 45339 541699 504101 545498 154981 505326 504019 545767 504101(2) 504071(2) 541695 541608 541686 504002 541924 545056 504007(2) 541693 541688 541690 504010 From the library of: Superior Sewing Machine & Supply LLC jintex.in

Page 3 — ACCESSORIES AND ATTACHMENTS

ACCESSORIES AND ATTACHMENTS 540169-701 540165-701 540161-701 549389 504509 542043 541817 504084 504509 548061 541918 41915 1913 505384 505419 948 505418 56073 541935 541631 545246(2) 541634 541910 549288(21) 541641 541756 541754 541636 541749 549119 541750 823 541774 285 504507 541911 547671 545047 505001(2) 549294 504167 545035(2) 546922 "A" OIL 546923 "B" OIL 55623(5) 541558 541561 541514 541937 549281-001 541515-001 541734 541516-001 541736-001 541781 505643 UNIVERSAL BOOBIN WINDER 505655-001 541739 541742 541741 541738 547671 505008 541740 545413 From the library of: Superior Sewing Machine & Supply LLC jintex.in

Page 4 — NUMERICAL LIST OF PARTS FOR 20011/13 "M"/CS

NUMERICAL LIST OF PARTS FOR 20011/13 "M"/CS Part No. Description 691 (650) Throat Plate Screw (2) 2102 Tension Disc (2) 11170 Presser bar Spring washer 52618 Clamp Stop Motion Clamp Flange 32758 Thread Take-up Spring 36555 Thread Cutter and Holder 45339 Feed Regulating Stud Head Pin 45339 Presser bar Lifter 52016 Thread Take-up Lever Thread Eyelet Bushing 52024 Thread Take-up Lever Thread 52150 Rotating hook Bobbin 52454 Thread Retainer Pin 55623 Presser Bar Spring 56024 Feed Connecting Link 56046 Presser Bar Spring 56073 Bell Crank Spring 99646 Arm Shaft (horizontal) Flanged Bushing (back) 99686 Presser Bar Lifter 99691 Tension Indicator Flange Washer 125314 Tension Spring 154756 (851) Clamp Stop Motion Clamp Stop Screw 154759 (850) Feed Connecting Link Hinge Screw 154759 (850) Feed Forked Connection Hinge Screw 154759 (850) Feed Lifting Rock Shaft Crank Connecting Rod Hinge Screw 154785 Bed Plate Bracket Screw (2) 154759 (809) Bed Slide Spring Screw (2) 154884 Bed Slide Spring 154981 (819) Feed Connecting Link Hinge Screw 154981 (819) Feed Forked Connection Hinge Screw 154981 (819) Feed Lifting Rock Shaft Crank Connecting Rod Hinge Screw Nut 504002 (850) Rotating Hook Drive Shaft Bushing (back) Screw 504002 (850) Rotating Hook Drive Shaft Bushing (front) Set Screw 504002 (850) Thread Take-up Lever Link Hinge Pin Set Screw 504002 (850) Thread Take-up Lever Regulator Set Screw 504005-451 Clamp Stop Motion Clamp Screw (Spec. No. 1030 Chrome Nickel Satin Finish) 504007 (850) Rotating Hook Set Screw (3) 504007 (850) Rotating Hook Set Screw (2) 504010 (851) Needle Bar Connecting Link Screw 504010 (851) Rotating Hook Shaft Bevel Gear Cover Screw 504019 (850) Feed (Upper) (Lower) Screw 504019 (850) Feed Lifting Rock Shaft Crank Screw 504028 (850) Arm Shaft (horizontal) Flanged Bushing (back) set Screw 504028 (850) Arm Shaft (horizontal) Worm Gear Set Screw (2) 504028 (850) Presser Bar Guide Bracket Screw 504029 (850) ZigZag Triangular Cam Shaft Bushing Set Screw 504032 (805) Rotating Hook Bobbin Case Latch Stop Screw 504047 (830) Tension Stud Set Screw 504048 Bight Amplitude Slide Block Shaft Bushing Collar Screw (Spec. No. 1050) (2) 504048 Rotating Hook Drive Shaft Retainer Collar Screw 504048 (850) Thread Retainer Set Screw 504056 (830) Presser Bar Lifter Pin Set Screw 504057 (805) Needle Bar Connecting Link Cap Screw 504063 (825) Presser Foot Screw 504066 (830) Arm Shaft (horizontal) Bevel Gear Set Screw (2) 504068 (803) Feed Bar Screw Center (2) 504069 (833) Feed and Feed Lifting Eccentric Position Screw 504070 (833) Feed and Feed Lifting Eccentric Set Screw 504071 (833) Arm Top Cover Screw (back) 504071 (833) Feed Lifting Rock Shaft Crank Connecting Rod Cap Screw (2) 504071 (833) Feed Reverse Lever Link Clamping Screw 504072 (803) Feed Lifting Rock Shaft Screw Center (2) 504074 (852) Feed Regulating Stud Head Screw 504077 (803) Needle Bar Connecting Link Adjusting Screw 504083 (852) Presser Regulating Thumb Screw 504084 (810) Bight Amplitude Stop Plate (left) (right) Screw (2) 504084 (810) Rotating Hook Bobbin Case Holder Position Bracket 504086 (806) Rotating Hook Bobbin Case Tension Regulating Screw 504087 (806) Rotating Hook Bobbin Case Spring Screw 504088 (803) Rotating Hook Section Screw (3) Part No. Description 504090 (803) Rotating Hook Thread Guard Screw (4) 504091 (810) Needle Bar Set Screw 504094 (850) Feed Regulating Stud Set Screw 504095 (850) Thread Take-up Crank Position Screw 504099 (809) Bell Crank Set Screw 504099 (809) Feed Reverse Lever Return Spring Bracket Screw 504101 (850) Arm Shaft (horizontal) Flanged Bushing (front) Screw (2) 504101 (850) Rotating Hook Drive Shaft Bevel Gear (back) Set Screw (2) 504101 (850) Rotating Hook Drive Shaft Bevel Gear (front) Screw (2) 504101 (850) Rotating Hook Shaft Bevel Gear Set Screw (2) 504101 (850) Thread Take-up Crank Set Screw 504102 (830) Arm Shaft (upright) Bevel Gear (upper) Set Screw 504114 (809) Needle Clamp Thread Guard Set Screw 504120 (803) Needle Bar Set Screw 504133 (850) Arm Shaft (horizontal) Flanged Bushing (front) Set Screw 504134 (850) Needle Bar Frame Pin Set Screw 504145 (809) Bight and L-C-R Position Lever Set Screw (2) 504145 (809) Thread Take-up Lever Guard Set Screw 504167 (805) Feed Regulator Set Screw (small) 504167 (805) Arm Screw (small) 504169 (809) Feed Connecting Rod Nut (2) 504170 (810) Feed Lifting Hook Shaft Center Nut (2) 504171 (819) Feed Lifting Hook Shaft Screw Center Nut (2) 504172 (809) Bight and L-C-R Position Lever Thumb Stud Nut 504173 (809) Feed Lifting Rock Shaft Roller and Stud 504174 (809) Feed Lifting Rock Shaft Roller and Stud 504175 (809) Feed Lifting Rock Shaft Roller and Stud 505000 Clamp Stop Motion Clamp washer 505001 Feed Oil Tube (for Feed Forked Connection) 505322 Feed Forked Connection 505323 Feed Lifting Rock Shaft Crank with 504019 505327 Feed Lifting Rock Shaft Crank Connecting Rod with 504019 505328 Feed Lifting Rock Shaft Crank Connecting Rod Cap (felt) 505333 Feed Rock Shaft 505335 Feed Rock Shaft Complete, Nos. 505333 and 505335 505335 Feed Rock Shaft Crank with 504019 and 504120 505353 Presser Bar Guide Bracket with 504028 505354 Rotating Hook Bobbin Case Latch, Nos. 505353, 505354 and 505355 505353 Rotating Hook Bobbin Case Latch 505354 Rotating Hook Bobbin Case Latch Lever 505355 Rotating Hook Bobbin Case Latch Lever Fulcrum Pin 505356 Rotating Hook Bobbin Case Latch Spring 505372 Thread Take-up Lever Link Hinge Pin 505374 Thread Take-up Spring Regulator 505384 Bell Crank Complete, Nos. 505373, 505417, 505418 and 505419 505407 Feed Bar Screw Center 504068 with 504502 (2) 505408 Feed Lifting Rock Shaft Screw Center 504072 with 504504 (2) 505408 Feed Lifting Rock Shaft Screw Center 504072 with 504504 (2) 505408 Thread Take-up Spring Regulator 504047 with 505374 505417 Bell Crank Bracket 505418 Bell Crank Bracket 505419 Bell Crank Bracket 505427 Rotating Hook Drive Shaft Retainer Collar with two 504086 Arm Shaft (horizontal) Flanged Bushing (front) 505428 Arm Shaft (horizontal) Flanged Bushing (front) 505658 Presser Bar Lifter Pin 540435 Feed Rock Shaft Stud Lock Pin 541566 Presser Foot (spring hinged) Complete 541605 Arm Shaft (horizontal) 541606 Arm Shaft (horizontal) Bevel Gear with two 504066 541607 Arm Shaft (horizontal) Worm Gear with two 504028 541608 Arm Shaft (upright) 541609 Arm Shaft (upright) Bevel Gear (lower) with two 504101 541610 Arm Shaft (upright) Bevel Gear (upper) with two 504101 541611 Arm Side Cover 541619 Bed Slide 541620 Bed Slide Complete, Nos. 154884, 541619 and two 154789 541623 Bight and L-C-R Position Lever Complete, Nos. 545413 and 549285 541630 Bight Amplitude Regulating Plate Spring 541631 Bight Amplitude Slide Block 541634 Bight Amplitude Slide Block Crank Link 541635 Bight Amplitude Slide Block Crank Shaft 541636 Bight Amplitude Slide Block Crank Shaft Bushing From the library of: Superior Sewing Machine & Supply LLC jintex.in

Page 5 — NUMERICAL LIST OF PARTS FOR 20U11/13 M/CS

NUMERICAL LIST OF PARTS FOR 20U11/13 M/CS Part No. Description 541637 Right Amplitude Slide Block Crank Shaft Bushing 541638 Right Amplitude Slide Block Crank Spring 541639 Right Amplitude Slide Block Guide with 545098 541641 Right Amplitude Slide Block Guide Stud 541642 Feed and Feed Lifting Eccentric with 504069 541643 and 504070 541646 Feed Bar 541647 Feed Dog 541648 Feed Lifting Rock Shaft with 504751 541649 Feed Lifting Rock Shaft Complete, Nos. 505326 and 541648 541650 Feed Regulator Stud Head with 45539 541651 Feed Regulator with 545045 541652 Feed Regulator Hinge Stud 541653 Feed Regulator Hinge Stud Flanged Bushing 541654 Feed Regulator Lever with 5040 541657 Needle Bar (hollow) 541661 Needle Bar Connecting Stud 541662 Needle Bar Connecting Stud Complete, Nos. 504091 541664 Needle Bar Connecting Stud Hinge Pin 541665 Needle Bar Connecting Stud Hinge Pin Washer 541667 Needle Clamp 541671 Rotating Hook with three 504088 541675 Rotating Hook Complete, Nos. 541671, 541694 541765 three 504088 and 504090 (for agents only) 541674 Rotating Hook 541673 with 541680 541675 Rotating Hook 541674 with 541675 541676 Rotating Hook Bobbin Case with 504086, 541764 541677 Rotating Hook Bobbin Case Complete, Nos. 504032 and 541764 541678 Rotating Hook Bobbin Case Holder 541680 Rotating Hook Drive Shaft 541682 Rotating Hook Drive Shaft Bevel Gear (back) 541684 with two 504101 541685 Rotating Hook Drive Shaft Bevel Gear (front) with two 504101 541686 Rotating Hook Drive Shaft Bushing (back) 541688 Rotating Hook Shaft Bevel 541689 Rotating Hook Shaft Bevel Gear with two 504101 541690 Rotating Hook Shaft Bevel Gear (front) 541692 Rotating Hook Shaft Bushing (short) 541693 Rotating Hook Shaft Retainer Collar with two 504007 (2) 541694 Rotating Hook Thread Guard 541695 Set of Gears (lower, back) Nos. 541609 and 541684 541696 Set of Gears (lower, front) Nos. 541685 and 541690 541697 Set of Gears (upper) Nos. 541606 and 541610 541698 Slack Thread Regulator 541699 Tension Complete, Nos. 3273, 505400, 541702, 541704, 541704, 541705, 125314 and two 2102 541700 Tension Releasing Lever 541701 Tension Releasing Lever Spring 541702 Tension Releasing Pin 541703 Tension Stud 541704 Tension Stud 541703 with 545498 and 545499 541707 Thread Take-up Lever 541708 Thread Take-up Lever with 52130 541709 Thread Take-up Lever Complete, Nos. 52024 and 541708 541711 Zigzag Stitch Regulator Fork 541712 Zigzag Stitch Regulator Fork Eccentric Connection 541723 Presser Bar Lifting Bracket with 541723 and 549550 541725 Presser Bar Lifting Shaft 541749 Right Amplitude Slide Block Crank Shaft Bushing Washer 541750 Right Amplitude Slide Block Crank Shaft Ring 541751 Feed Forked Connection 505322 541651, two 154759 and 154981 541753 Arm Shaft (horizontal) and Needle Bar Crank Complete Nos. 505339 and 541605 541754 Right Amplitude Slide Block Crank Shaft Knob 541774 with 541635, 541750 and 549119 541756 Right Amplitude Slide Block Guide 541641 with 541631 541759 Needle Bar Frame Clamping Stud 541762 Arm Top Cover Spool Holder 541764 Rotating Hook Bobbin Case Tension Spring Part No. Description 541765 Rotating Hook Section 541770 Needle Bar Timing Indicator Plate 541771 Bed Plate 541772 Bed Plate Bracket 541773 Bed Plate Complete, Nos. 541771 with 541772 and 504069 541774 Right Amplitude Slide Block Crank Shaft Knob 541775 Feed Reverse Lever Return Spring 541779 Feed Reverse Lever Link with 504071 541780 Feed Reverse Lever Return Spring Bracket (hook) 541784 Feed Reverse Lever Hinge Stud 541786 Rotating Hook Bobbin Case Holder Position Bracket 541787 541788 Needle Clamp Thread Guard 541789 Needle Clamp Complete, Nos. 504027, 504114, and 541787 541904 Arm Top Cover (cotton) 541762 Arm Top Cover (cotton) 541905 Arm Top Cover Complete, Nos. 505314, 541762 and 541764 541908 Face Plate with 546761 541909 Right and L-R Position Lever Arm 541910 Right and L-R Position Lever Arm 541911 Right and L-R Position Lever Thumb Stud (Spec. No. 1019) 541912 Right Amplitude Regulating Plate (left) 541913 Right Amplitude Regulating Plate (right) 541915 Right Amplitude Regulating Plate Holder and Right Amplitude Regulating Plate Complete, 541916 Nos. 541630, 541912, 541913, and 541946 Right Amplitude Stop Plate (left) (right) (2) 541917 Lever Connecting Rod 541918 Lever Connecting Rod 541921 Needle Bar Frame 541922 Needle Bar Frame Pin 541923 Needle Bar Frame Shaft (long) 541924 Rotating Hook Drive Shaft Bushing (front) 541925 Needle Bar Connecting Link 541927 Needle Bar Connecting Link Guide 541928 Right Amplitude Slide Block Crank 541935 with 541930 541612, 541750, 541918, and two 549288 541931 Arm Shaft (hollow) 541657 with 541933 541932 Needle Bar Connecting Link with 54077 541933 Needle Bar Connecting Link 541930 with 541002 541935 Arm Shaft (hollow) 541936 Needle Bar Frame Shaft Bushing (long) 541940 Take-up Lever Guard 541941 Bar Connecting Link Guide 541943 Right Amplitude Slide Block Crank with two 545246 541946 Triangular Cam Shaft 541948 Triangular Cam Shaft Bushing 541949 Triangular Cam with two 549566 541950 Right Amplitude Regulating Plate Holder. 541956 Arm Top Cover (back) U-ring 542043 Arm Top Cover (back) U-ring 545001 (819) Reinforcement Plate 545035 (805) Lifting Lever Connecting Rod Spring 545045 (835) Needle Bar Connecting Stud Hinge Pin Screw 545046 (809) Screw (2) 545056 (835) Feed Reverse Lever Stud Set Screw 545056 (835) Feed Reverse Lever Set Screw 545082 (803) Rotating Hook Shaft Bushing (short) Set Screw 545092 (810) Rotating Hook Shaft Bushing (long) Set Screw 545098 (850) Right and L-C-R Position Block Set Screw (2) 545098 (850) Right and L-C-R Position Lever Set Screw 545114 Arm Top Cover (back) U-ring 545218 (852) Arm Top Cover (back) U-ring 545246 (806) Right Amplitude Slide Block Guide Stud Set 545260 (806) Screw 545335 (819) Tension Spring 545354 (804) Arm Reinforcement Plate Screw 545413 (803) Right Amplitude Slide Block Crank Set Screw (2) 545495 Tension Releasing Lever Hinge Screw 545498 Tension Spring 545499 (873) Tension Spring 545766 Arm Shaft Bushing (lower) 545767 Arm Shaft (upright) Bushing (lower) 545814 Arm Shaft (upright) Bushing (upper) 545820 Regulating Stud Bushing 545825 Regulating Stud Lock Pin Spring 546701 Arm Top Cover Screw (front) U-ring 547671 Needle Bar Frame Clamping Stud Flanged Bushing 547672 Low Latch Roller (roller) 547674 Right and L-C-R Position Lever Thumb Stud Nut Washer From the library of: Superior Sewing Machine & Supply LLC jintex.in

Page 6 — NUMERICAL LIST OF PARTS FOR 20U113 P/Cs

NUMERICAL LIST OF PARTS FOR 20U113 P/Cs Part No. Description Part No. Description 548061 Right Amplitude Stop Plate (left) (right) Washer (2) 549119 (850) Bight Amplitude Slide Block Crank Shaft Knob Set Screw 549285 (803) Bight and L-C-R Position Lever Screw Pin 549285 (830) Bight Amplitude Slide Block Crank Link Hinge Screw (2) 549289 (803) Feed Regulating Stud 549290 (819) Zigzag Stitch Regulator For Eccentric Connection Pin Set Screw 549294 (805) Presser Bar Lifting Shaft Link Hinge Screw 549330 (825) Arm Side Cover Set Screw (2) 549336 (825) Needle Bar Timing Indicator Plate Screw (2) 549336 (825) Needle Bar Frame Clamping Stud Screw 549349 (856) Arm Reinforcement Plate Screw 549354 Needle Bar Frame Clamping 549356 (850) Bight Amplitude Regulating Set Screw (2) 549366 Zigzag Triangular Cam Shaft Set Screw (2) 549365 (850) Feed Dog Screw (2) 549385 Bight Amplitude Regulating Plate Thumb Screw (Spec. No. 1019) (2) 549387 Bight and L-C-R Position Lever Arm Regulating Screw (Spec. No. 1050) (2) 549389 Lifting Lever Hinge Screw (Spec. No. 1050) 549426 Bight and L-C-R Position Block Washer (2) 549857 Tension Indicator 549858 Tension Indicator Flange CAT-1955 Needle (size #14) with Pootoon C.A.L. ACCESSORIES AND ATTACHMENTS (Supplied with Machine) 12403 Arm Spool Pin and Thread Eyelet 55623 Rotating Hook Bobbin (5) 505643 Presser Foot (spring hinged) Complete (for straight stitching) 540101-701 Arm Top Spool Seat Complete 540165-701 Arm Top Cover Spool holder Thread Lead-off (large) Complete 540169-701 Arm Top Cover Spool holder Thread Lead-off (small) Complete 541514 Screw Driver (small) 541515-001 Cloth Guide (purchased part) 541516-001 Hemmer Foot (1/8 inch) (purchased part) 541558 Screw Driver (large) 541561 Screw Driver (for throat plate) 541734 Feed Dog (for straight stitching) 541736-001 Zipper Foot (purchased part) 541781 Presser Foot (spring hinged) Complete (for buttonholing) 541782 Throat Plate (for straight stitching) 541937 Oiler (130 cc, filled with Singer type "A" oil) (for treadle drive) 546923 Oiler (130 cc, filled with Singer type "B" oil) (for electric drive) 549271-001 Cloth Guide Screw (purchased part) CAT-1955 Needle (size #14) with Pootoon C.A.L. (3) UNIVERSAL BOBBIN WINDER (Supplied with Machine) 505008 Bobbin Winder Spool Pin Fastener (felt) 505055-001 Bobbin Winder Spool Pin Set (include two wood screw) (purchased assembly) 541738 Bobbin Winder Spool Pin 541740 Bobbin Winder Spool Pin Complete Nos. 505008, 541738, 541740, 541742, 505011 and 547671 541741 Bobbin Winder Spool Pin Set 541742 Bobbin Winder Spool Presser Plate (body) 541743 Bobbin Winder Spool Presser Plate Complete Nos. 541741 and 541743 541743 Bobbin Winder Spool Presser Plate C-Ring 545413 (850) Bobbin Winder Spool Pin Nut 547671 Bobbin Winder Spool Pin Spring Washer From the library of: Superior Sewing Machine & Supply LLC jintex.in