Fasteners Part Numbers

301-00030-0 Cap Socket Head Screw
301000300

NSN 5305-01-470-1129

16282

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2a thread class right-hand 9.250" thread length 11 thread quantity per inch unc thread series

6-1-9836-129 Machine Bolt
619836129

NSN 5306-01-470-1127

01847

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plated

2154951 Cap Hexagon Head Screw
2154951

NSN 5305-01-470-1070

18257

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Used on alco251 engine, v-8/v-16. right-hand 2.000" thread length 10 thread quantity per inch unc thread series

21547714 Machine Screw
21547714

NSN 5305-01-470-1069

06657

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Used on alco c251 engine v-16 and v-8. right-hand 0.500" thread length 24 thread quantity per inch unc thread series

21552820 Cap Hexagon Head Screw
21552820

NSN 5305-01-470-1065

18257

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Used on alco251 engine. 0.375" thread length

21549624 Cap Hexagon Head Screw
21549624

NSN 5305-01-470-1064

18257

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Used on alco251 engine. 0.312" thread length

2154974 Cap Hexagon Head Screw
2154974

NSN 5305-01-470-1063

18257

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Used on alco251 engine.

2154961 Cap Hexagon Head Screw
2154961

NSN 5305-01-470-1055

18257

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Used on alco 251 engine.

21549620 Cap Hexagon Head Screw
21549620

NSN 5305-01-470-1047

18257

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Used on alc0251 engine.

2154524 Plain Stud
2154524

NSN 5307-01-470-1043

15948

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Used on alc0251 engine. 0.625" thread length 4.750"

21547719 Machine Screw
21547719

NSN 5305-01-470-1042

06657

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Used on alco251 engine. 32.000 thread quantity per inch

21549618 Cap Hexagon Head Screw
21549618

NSN 5305-01-470-1039

18257

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Used on lc0251 engine. 0.500" thread length

21555712 Cap Hexagon Head Screw
21555712

NSN 5305-01-470-1037

18257

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Used on alco251 engine.

21549645 Cap Hexagon Head Screw
21549645

NSN 5305-01-470-1032

18257

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Used on alco c251 engine v-16 and v-8. right-hand 2.500" thread length 16 thread quantity per inch unc thread series

21549632 Cap Hexagon Head Screw
21549632

NSN 5305-01-470-1029

18257

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Used on alc251 engine.

21549613 Cap Hexagon Head Screw
21549613

NSN 5305-01-470-1028

18257

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Used on alco251 engine. 0.375" thread length

21513585-1 Cap Hexagon Head Screw
215135851

NSN 5305-01-470-1023

18257

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Used on alco 250 diesel engine. capscrew, actuator to bracket, 5/16-18 x 1-1/2

21512856 Cap Hexagon Head Screw
21512856

NSN 5305-01-470-1017

18257

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Used on alco 250 diesel engine. capscrew, idler shaft to housing, 5/8-11 x 5-1/2 in.

21513569-1 Cap Hexagon Head Screw
215135691

NSN 5305-01-470-1014

18257

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Used on alco 251 diesel engine. capscrew, switch to bracket, 1/4-20 x 1 1/4

2151352-1 Cap Hexagon Head Screw
21513521

NSN 5305-01-470-1006

18257

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Used on alco 250 diesel engine.

2321141 Retaining Ring
2321141

NSN 5325-01-470-0997

07623

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Used on engine alco251.

21513590 Cap Hexagon Head Screw
21513590

NSN 5305-01-470-0971

18257

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Used on alco 250 diesel engine. capscrew, upper

21513533-1 Cap Hexagon Head Screw
215135331

NSN 5305-01-470-0969

18257

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Used on alco 250 diesel engine. capscrew, bottom shield to cylinder block, 3/8-16 x 5/8 in.

21513550-1 Cap Hexagon Head Screw
215135501

NSN 5305-01-470-0967

18257

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Used on alco 251 diesel engine. capscrew, 1/4-20 x 1/2

21513725 Cap Hexagon Head Screw
21513725

NSN 5305-01-470-0966

18257

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Used on alco 251 diesel engine. nut, 3/8-16

21513555-1 Cap Hexagon Head Screw
215135551

NSN 5305-01-470-0963

18257

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Used on alco 251 diesel engine. capscrew, header to support, 1/2-13 x 3-1/4

21513571-1 Cap Hexagon Head Screw
215135711

NSN 5305-01-470-0962

18257

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Used on alco 250 diesel engine. capscrew, housing to base, 3/8-16x 1-1/4

21513511-1 Cap Hexagon Head Screw
215135111

NSN 5305-01-470-0961

18257

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Used on alco 250 diesel engine. capscrew, support to base, 5/8-11 x 1-1/4

21513548-1 Cap Hexagon Head Screw
215135481

NSN 5305-01-470-0960

18257

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Used on alco 250 diesel engine. capscrew, support to base

21513543-1 Cap Hexagon Head Screw
215135431

NSN 5305-01-470-0957

18257

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Used on alco 250 diesel engine.

21513552-1 Cap Hexagon Head Screw
215135521

NSN 5305-01-470-0953

18257

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Used on alco 250 diesel engine.

NAS1581C3R1 Close Tolerance Screw
NAS1581C3R1

NSN 5305-01-470-0864

29294

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3a thread class right-hand 0.337" thread length flat countersunk head style 0.052" grip length 32 thread quantity per inch internal drive ribbed unjf thread series

NAS1581K3R2 Close Tolerance Screw
NAS1581K3R2

NSN 5305-01-470-0850

29294

See more Close Tolerance Screws

3a thread class right-hand 0.337" thread length flat countersunk head style 0.115" grip length 32 thread quantity per inch internal drive ribbed unjf thread series

7-511B25038 Nonmetallic Grommet
7511B25038

NSN 5325-01-470-0840

33729

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NAS6404U50 Shear Bolt
NAS6404U50

NSN 5306-01-470-0830

15903

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3a thread class right-hand 0.345" thread length dished hexagon head style 3.115" grip length 28 thread quantity per inch unjf thread series

11479753 Externally Relieved Body Screw
11479753

NSN 5305-01-470-0828

01852

See more Externally Relieved Body Screws

Used on 1430-01-087-6330. 2a thread class right-hand 0.600" thread length knurled no. 5 head style 20 thread quantity per inch surface finish is 125.0 microinches passivate surface treated unc thread series

CA28106-08-14HS Panel Screw Assembly
CA281060814HS

NSN 5305-01-470-0746

33044

See more Panel Screw Assemblys

3a thread class right-hand 0.297" thread length knurled no. 5 head style 32 thread quantity per inch designed to be used with a nut retainer passivate surface treated unc thread series

CA28106-08-9HS Panel Screw Assembly
CA28106089HS

NSN 5305-01-470-0722

33044

See more Panel Screw Assemblys

3a thread class right-hand 0.297" thread length knurled no. 5 head style 32 thread quantity per inch designed to be used with nut retainer passivate surface treated unc thread series

1241C205-01 Panel Fastener Screw
1241C20501

NSN 5305-01-470-0690

19665

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NAS1454C02-0104 Continuous Thread Stud
NAS1454C020104

NSN 5307-01-470-0677

15951

See more Continuous Thread Studs

2a thread class right-hand 1.250" overall length 56 thread quantity per inch passivate surface treated unc thread series

950-31704 Self-locking Stud
95031704

NSN 5307-01-470-0676

27783

See more Self-locking Studs

950-31536-6 Female Screw Lock
950315366

NSN 5305-01-470-0674

77777

Female Screw Locks

AN501A416-32 Machine Screw
AN501A41632

NSN 5305-01-470-0655

06657

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Used on helicopter spare parts. 2a thread class right-hand 2.000" thread length fillister head style 28 thread quantity per inch screw, machine, fillister head, fine thread cadmium screw surface treated drilled hole to be on center approx at right anglesto the slot but must not break thru the base or top; screws shall be free of all loose or hanging burrs or slivers which might become dislodged under usage unf thread series

NAS1921M06-03 Blind Rivet
NAS1921M0603

NSN 5320-01-470-0633

00864

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flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.126" grip length cadmium sleeve surface treated

A1269-7 Machine Screw
A12697

NSN 5305-01-470-0629

06657

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A1369-35 Cap Socket Head Screw
A136935

NSN 5305-01-470-0628

16282