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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.

5331-00-291-3294 (AN124011)

NIIN: 00-291-3294
In stock
NSN: 5331-00-291-3294
FSC Code: 5331
MPN: AN124011

5331-00-285-9776 (AN124013)

NIIN: 00-285-9776
In stock
NSN: 5331-00-285-9776
FSC Code: 5331
MPN: AN124013

5331-00-530-3499 (AN124005)

NIIN: 00-530-3499
In stock
NSN: 5331-00-530-3499
FSC Code: 5331
MPN: AN124005

5331-00-291-7367 (AN124023)

NIIN: 00-291-7367
In stock
NSN: 5331-00-291-7367
FSC Code: 5331
MPN: AN124023

5331-00-285-9780 (AN124006)

NIIN: 00-285-9780
In stock
NSN: 5331-00-285-9780
FSC Code: 5331
MPN: AN124006

5331-00-291-7382 (AN124020)

NIIN: 00-291-7382
In stock
NSN: 5331-00-291-7382
FSC Code: 5331
MPN: AN124020

5331-00-285-9773 (AN124003)

NIIN: 00-285-9773
In stock
NSN: 5331-00-285-9773
FSC Code: 5331
MPN: AN124003

5331-00-285-9782 (AN124001)

NIIN: 00-285-9782
In stock
NSN: 5331-00-285-9782
FSC Code: 5331
MPN: AN124001

5331-00-291-7343 (AN123995)

NIIN: 00-291-7343
In stock
NSN: 5331-00-291-7343
FSC Code: 5331
MPN: AN123995

5331-00-285-9769 (AN123989)

NIIN: 00-285-9769
In stock
NSN: 5331-00-285-9769
FSC Code: 5331
MPN: AN123989

5331-00-291-7360 (AN123985)

NIIN: 00-291-7360
In stock
NSN: 5331-00-291-7360
FSC Code: 5331
MPN: AN123985

5331-00-291-7344 (AN123994)

NIIN: 00-291-7344
In stock
NSN: 5331-00-291-7344
FSC Code: 5331
MPN: AN123994

5331-00-285-9771 (AN123987)

NIIN: 00-285-9771
In stock
NSN: 5331-00-285-9771
FSC Code: 5331
MPN: AN123987

5331-00-527-8165 (AN123979)

NIIN: 00-527-8165
In stock
NSN: 5331-00-527-8165
FSC Code: 5331
MPN: AN123979

5331-00-527-8170 (AN123981)

NIIN: 00-527-8170
In stock
NSN: 5331-00-527-8170
FSC Code: 5331
MPN: AN123981

5331-00-291-7364 (AN123971)

NIIN: 00-291-7364
In stock
NSN: 5331-00-291-7364
FSC Code: 5331
MPN: AN123971

5331-00-291-7352 (AN123977)

NIIN: 00-291-7352
In stock
NSN: 5331-00-291-7352
FSC Code: 5331
MPN: AN123977

5331-00-291-7350 (AN123975)

NIIN: 00-291-7350
In stock
NSN: 5331-00-291-7350
FSC Code: 5331
MPN: AN123975

5331-00-843-4612 (AN123934)

NIIN: 00-843-4612
In stock
NSN: 5331-00-843-4612
FSC Code: 5331
MPN: AN123934

5331-00-585-0848 (AN123970)

NIIN: 00-585-0848
In stock
NSN: 5331-00-585-0848
FSC Code: 5331
MPN: AN123970

5331-00-527-9625 (AN123916)

NIIN: 00-527-9625
In stock
NSN: 5331-00-527-9625
FSC Code: 5331
MPN: AN123916

5331-00-599-2192 (AN123928)

NIIN: 00-599-2192
In stock
NSN: 5331-00-599-2192
FSC Code: 5331
MPN: AN123928

5331-00-290-9381 (AN-123933)

NIIN: 00-290-9381
In stock
NSN: 5331-00-290-9381
FSC Code: 5331
MPN: AN123933

5331-00-290-9374 (AN123915)

NIIN: 00-290-9374
In stock
NSN: 5331-00-290-9374
FSC Code: 5331
MPN: AN123915

5331-00-250-1228 (AN123930)

NIIN: 00-250-1228
In stock
NSN: 5331-00-250-1228
FSC Code: 5331
MPN: AN123930

5331-00-291-3302 (AN123957)

NIIN: 00-291-3302
In stock
NSN: 5331-00-291-3302
FSC Code: 5331
MPN: AN123957

5331-00-559-2420 (AN123929)

NIIN: 00-559-2420
In stock
NSN: 5331-00-559-2420
FSC Code: 5331
MPN: AN123929

5331-00-290-9393 (AN-123931)

NIIN: 00-290-9393
In stock
NSN: 5331-00-290-9393
FSC Code: 5331
MPN: AN123931

5331-00-527-9227 (AN123918)

NIIN: 00-527-9227
In stock
NSN: 5331-00-527-9227
FSC Code: 5331
MPN: AN123918

5331-00-527-8517 (AN123927)

NIIN: 00-527-8517
In stock
NSN: 5331-00-527-8517
FSC Code: 5331
MPN: AN123927

5331-00-291-1851 (AN123910)

NIIN: 00-291-1851
In stock
NSN: 5331-00-291-1851
FSC Code: 5331
MPN: AN123910

5331-00-290-9391 (AN123924)

NIIN: 00-290-9391
In stock
NSN: 5331-00-290-9391
FSC Code: 5331
MPN: AN123924

5331-00-290-9380 (AN123914)

NIIN: 00-290-9380
In stock
NSN: 5331-00-290-9380
FSC Code: 5331
MPN: AN123914

5331-00-290-9388 (AN123913)

NIIN: 00-290-9388
In stock
NSN: 5331-00-290-9388
FSC Code: 5331
MPN: AN123913

5331-00-291-1850 (AN123911)

NIIN: 00-291-1850
In stock
NSN: 5331-00-291-1850
FSC Code: 5331
MPN: AN123911

5331-00-171-3870 (AN123904)

NIIN: 00-171-3870
In stock
NSN: 5331-00-171-3870
FSC Code: 5331
MPN: AN123904

5331-00-290-9387 (AN123909)

NIIN: 00-290-9387
In stock
NSN: 5331-00-290-9387
FSC Code: 5331
MPN: AN123909

5331-00-291-3292 (AN123859)

NIIN: 00-291-3292
In stock
NSN: 5331-00-291-3292
FSC Code: 5331
MPN: AN123859

5331-01-028-9347 (AN123894)

NIIN: 01-028-9347
In stock
NSN: 5331-01-028-9347
FSC Code: 5331
MPN: AN123894

5331-00-290-9385 (AN123873)

NIIN: 00-290-9385
In stock
NSN: 5331-00-290-9385
FSC Code: 5331
MPN: AN123873

5331-00-250-1222 (AN123889)

NIIN: 00-250-1222
In stock
NSN: 5331-00-250-1222
FSC Code: 5331
MPN: AN123889

5331-01-285-4019 (AN-1.5-692F-DBK)

NIIN: 01-285-4019
In stock
NSN: 5331-01-285-4019
FSC Code: 5331
MPN: AN15692FDBK

5331-01-255-0138 (AN-1.25-125B-A)

NIIN: 01-255-0138
In stock
NSN: 5331-01-255-0138
FSC Code: 5331
MPN: AN125125BA

5331-01-255-0137 (AN-1.25-125B-A)

NIIN: 01-255-0137
In stock
NSN: 5331-01-255-0137
FSC Code: 5331
MPN: AN125125BA

5331-01-317-9968 (AMS-R-83485/1)

NIIN: 01-317-9968
In stock
NSN: 5331-01-317-9968
FSC Code: 5331
MPN: AMSR834851

5331-00-783-4515 (AMS-R-6855)

NIIN: 00-783-4515
In stock
NSN: 5331-00-783-4515
FSC Code: 5331
MPN: AMSR6855

5331-01-244-2274 (AMS-R-25988/1)

NIIN: 01-244-2274
In stock
NSN: 5331-01-244-2274
FSC Code: 5331
MPN: AMSR259881

5331-01-160-4338 (AMS-P-83461/1)

NIIN: 01-160-4338
In stock
NSN: 5331-01-160-4338
FSC Code: 5331
MPN: AMSP834611