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O-Rings

FSC 5331: O-Rings

Federal Supply Class (FSC) 5331 covers O-rings, the round-section elastomeric seals used to seal static and dynamic joints. The catalog includes O-rings built to AS568, MIL-SPEC, and industry standards.

O-rings seal connections in hydraulic, pneumatic, fuel, and fluid systems by compressing in a groove. They are among the most widely used sealing elements in machinery.

Common materials include nitrile (Buna-N), fluorocarbon (Viton), silicone, EPDM, and PTFE, selected for fluid compatibility and temperature range. Sizes follow standard dash-number series for repeatable replacement.

5331-01-299-6455 (23035921)

NIIN: 01-299-6455
In stock
NSN: 5331-01-299-6455
FSC Code: 5331
MPN: 23035921

5331-01-330-2893 (23036041)

NIIN: 01-330-2893
In stock
NSN: 5331-01-330-2893
FSC Code: 5331
MPN: 23036041

5331-01-219-2546 (23040579)

NIIN: 01-219-2546
In stock
NSN: 5331-01-219-2546
FSC Code: 5331
MPN: 23040579

5331-01-219-2547 (23040580)

NIIN: 01-219-2547
In stock
NSN: 5331-01-219-2547
FSC Code: 5331
MPN: 23040580

5331-01-219-2545 (23040582)

NIIN: 01-219-2545
In stock
NSN: 5331-01-219-2545
FSC Code: 5331
MPN: 23040582

5331-01-216-4009 (23045126)

NIIN: 01-216-4009
In stock
NSN: 5331-01-216-4009
FSC Code: 5331
MPN: 23045126

5331-01-216-2815 (23045477)

NIIN: 01-216-2815
In stock
NSN: 5331-01-216-2815
FSC Code: 5331
MPN: 23045477

5331-01-237-2967 (23046648)

NIIN: 01-237-2967
In stock
NSN: 5331-01-237-2967
FSC Code: 5331
MPN: 23046648

5331-01-241-2711 (23200206)

NIIN: 01-241-2711
In stock
NSN: 5331-01-241-2711
FSC Code: 5331
MPN: 23200206

5331-01-249-1629 (23500139)

NIIN: 01-249-1629
In stock
NSN: 5331-01-249-1629
FSC Code: 5331
MPN: 23500139

5331-01-319-5207 (23505891)

NIIN: 01-319-5207
In stock
NSN: 5331-01-319-5207
FSC Code: 5331
MPN: 23505891

5331-01-319-5208 (23505892)

NIIN: 01-319-5208
In stock
NSN: 5331-01-319-5208
FSC Code: 5331
MPN: 23505892

5331-01-269-4324 (24860170)

NIIN: 01-269-4324
In stock
NSN: 5331-01-269-4324
FSC Code: 5331
MPN: 24860170

5331-01-201-3613 (25004500)

NIIN: 01-201-3613
In stock
NSN: 5331-01-201-3613
FSC Code: 5331
MPN: 25004500

5331-00-135-5084 (25626083)

NIIN: 00-135-5084
In stock
NSN: 5331-00-135-5084
FSC Code: 5331
MPN: 25626083

5331-00-710-5661 (25816088)

NIIN: 00-710-5661
In stock
NSN: 5331-00-710-5661
FSC Code: 5331
MPN: 25816088

5331-00-895-9477 (25716068)

NIIN: 00-895-9477
In stock
NSN: 5331-00-895-9477
FSC Code: 5331
MPN: 25716068

5331-01-218-1177 (27228015)

NIIN: 01-218-1177
In stock
NSN: 5331-01-218-1177
FSC Code: 5331
MPN: 27228015

5331-00-139-5701 (28922679)

NIIN: 00-139-5701
In stock
NSN: 5331-00-139-5701
FSC Code: 5331
MPN: 28922679

5331-01-254-5313 (28740123)

NIIN: 01-254-5313
In stock
NSN: 5331-01-254-5313
FSC Code: 5331
MPN: 28740123

5331-00-006-0706 (28740063)

NIIN: 00-006-0706
In stock
NSN: 5331-00-006-0706
FSC Code: 5331
MPN: 28740063

5331-01-191-2960 (29035902)

NIIN: 01-191-2960
In stock
NSN: 5331-01-191-2960
FSC Code: 5331
MPN: 29035902

5331-00-302-9703 (29776580)

NIIN: 00-302-9703
In stock
NSN: 5331-00-302-9703
FSC Code: 5331
MPN: 29776580

5331-01-289-1820 (29803272)

NIIN: 01-289-1820
In stock
NSN: 5331-01-289-1820
FSC Code: 5331
MPN: 29803272

5331-00-069-9136 (30125030)

NIIN: 00-069-9136
In stock
NSN: 5331-00-069-9136
FSC Code: 5331
MPN: 30125030

5331-00-135-9743 (31005112)

NIIN: 00-135-9743
In stock
NSN: 5331-00-135-9743
FSC Code: 5331
MPN: 31005112

5331-01-271-7717 (31004112)

NIIN: 01-271-7717
In stock
NSN: 5331-01-271-7717
FSC Code: 5331
MPN: 31004112

5331-01-115-4947 (31440040)

NIIN: 01-115-4947
In stock
NSN: 5331-01-115-4947
FSC Code: 5331
MPN: 31440040

5331-01-115-2340 (31440037)

NIIN: 01-115-2340
In stock
NSN: 5331-01-115-2340
FSC Code: 5331
MPN: 31440037

5331-01-115-3358 (31440039)

NIIN: 01-115-3358
In stock
NSN: 5331-01-115-3358
FSC Code: 5331
MPN: 31440039

5331-01-115-2341 (31440041)

NIIN: 01-115-2341
In stock
NSN: 5331-01-115-2341
FSC Code: 5331
MPN: 31440041

5331-01-220-9579 (32136715)

NIIN: 01-220-9579
In stock
NSN: 5331-01-220-9579
FSC Code: 5331
MPN: 32136715

5331-01-201-9408 (34106006)

NIIN: 01-201-9408
In stock
NSN: 5331-01-201-9408
FSC Code: 5331
MPN: 34106006

5331-01-249-4214 (34503011)

NIIN: 01-249-4214
In stock
NSN: 5331-01-249-4214
FSC Code: 5331
MPN: 34503011

5331-01-249-8134 (34503029)

NIIN: 01-249-8134
In stock
NSN: 5331-01-249-8134
FSC Code: 5331
MPN: 34503029

5331-01-256-4496 (34667675)

NIIN: 01-256-4496
In stock
NSN: 5331-01-256-4496
FSC Code: 5331
MPN: 34667675

5331-01-248-9718 (34605519)

NIIN: 01-248-9718
In stock
NSN: 5331-01-248-9718
FSC Code: 5331
MPN: 34605519

5331-00-757-1700 (35715294)

NIIN: 00-757-1700
In stock
NSN: 5331-00-757-1700
FSC Code: 5331
MPN: 35715294

5331-00-831-2438 (35704663)

NIIN: 00-831-2438
In stock
NSN: 5331-00-831-2438
FSC Code: 5331
MPN: 35704663

5331-01-275-6717 (37044203)

NIIN: 01-275-6717
In stock
NSN: 5331-01-275-6717
FSC Code: 5331
MPN: 37044203

5331-01-304-1138 (37790177)

NIIN: 01-304-1138
In stock
NSN: 5331-01-304-1138
FSC Code: 5331
MPN: 37790177

5331-00-913-0027 (38320201)

NIIN: 00-913-0027
In stock
NSN: 5331-00-913-0027
FSC Code: 5331
MPN: 38320201

5331-00-542-0661 (38012850)

NIIN: 00-542-0661
In stock
NSN: 5331-00-542-0661
FSC Code: 5331
MPN: 38012850

5331-00-005-7981 (38320191)

NIIN: 00-005-7981
In stock
NSN: 5331-00-005-7981
FSC Code: 5331
MPN: 38320191

5331-01-237-5234 (39026685)

NIIN: 01-237-5234
In stock
NSN: 5331-01-237-5234
FSC Code: 5331
MPN: 39026685

5331-01-237-5235 (39026686)

NIIN: 01-237-5235
In stock
NSN: 5331-01-237-5235
FSC Code: 5331
MPN: 39026686

5331-00-515-4277 (39522557)

NIIN: 00-515-4277
In stock
NSN: 5331-00-515-4277
FSC Code: 5331
MPN: 39522557

5331-01-292-7146 (39801072)

NIIN: 01-292-7146
In stock
NSN: 5331-01-292-7146
FSC Code: 5331
MPN: 39801072