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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.

5331-01-031-4430 (002-271-270)

NIIN: 01-031-4430
In stock
NSN: 5331-01-031-4430
FSC Code: 5331
MPN: 002271270

5331-00-915-2276 (002-271-282)

NIIN: 00-915-2276
In stock
NSN: 5331-00-915-2276
FSC Code: 5331
MPN: 002271282

5331-00-913-7706 (002-271-356)

NIIN: 00-913-7706
In stock
NSN: 5331-00-913-7706
FSC Code: 5331
MPN: 002271356

5331-01-284-9738 (0022-9040)

NIIN: 01-284-9738
In stock
NSN: 5331-01-284-9738
FSC Code: 5331
MPN: 00229040

5331-00-599-2934 (002389)

NIIN: 00-599-2934
In stock
NSN: 5331-00-599-2934
FSC Code: 5331
MPN: 002389

5331-00-943-8911 (0023-9025N304-7)

NIIN: 00-943-8911
In stock
NSN: 5331-00-943-8911
FSC Code: 5331
MPN: 00239025N3047

5331-00-324-7730 (00239-025)

NIIN: 00-324-7730
In stock
NSN: 5331-00-324-7730
FSC Code: 5331
MPN: 00239025

5331-01-134-0766 (002390T)

NIIN: 01-134-0766
In stock
NSN: 5331-01-134-0766
FSC Code: 5331
MPN: 002390T

5331-01-290-6092 (00241-007-1)

NIIN: 01-290-6092
In stock
NSN: 5331-01-290-6092
FSC Code: 5331
MPN: 002410071

5331-01-290-6093 (00241-004-1)

NIIN: 01-290-6093
In stock
NSN: 5331-01-290-6093
FSC Code: 5331
MPN: 002410041

5331-00-252-6056 (0024432957)

NIIN: 00-252-6056
In stock
NSN: 5331-00-252-6056
FSC Code: 5331
MPN: 0024432957

5331-01-200-7524 (00247146)

NIIN: 01-200-7524
In stock
NSN: 5331-01-200-7524
FSC Code: 5331
MPN: 00247146

5331-01-024-2517 (00259.07657)

NIIN: 01-024-2517
In stock
NSN: 5331-01-024-2517
FSC Code: 5331
MPN: 0025907657

5331-00-579-7545 (002657-00)

NIIN: 00-579-7545
In stock
NSN: 5331-00-579-7545
FSC Code: 5331
MPN: 00265700

5331-01-269-3693 (002657-00)

NIIN: 01-269-3693
In stock
NSN: 5331-01-269-3693
FSC Code: 5331
MPN: 00265700

5331-01-268-8804 (002658-00PH)

NIIN: 01-268-8804
In stock
NSN: 5331-01-268-8804
FSC Code: 5331
MPN: 00265800PH

5331-01-268-2560 (002659-00)

NIIN: 01-268-2560
In stock
NSN: 5331-01-268-2560
FSC Code: 5331
MPN: 00265900

5331-00-585-5958 (002659-00)

NIIN: 00-585-5958
In stock
NSN: 5331-00-585-5958
FSC Code: 5331
MPN: 00265900

5331-00-582-2855 (00276-96)

NIIN: 00-582-2855
In stock
NSN: 5331-00-582-2855
FSC Code: 5331
MPN: 0027696

5331-01-329-1879 (002773T)

NIIN: 01-329-1879
In stock
NSN: 5331-01-329-1879
FSC Code: 5331
MPN: 002773T

5331-01-241-6134 (002794)

NIIN: 01-241-6134
In stock
NSN: 5331-01-241-6134
FSC Code: 5331
MPN: 002794

5331-01-287-2279 (002896)

NIIN: 01-287-2279
In stock
NSN: 5331-01-287-2279
FSC Code: 5331
MPN: 002896

5331-00-007-6093 (00289)

NIIN: 00-007-6093
In stock
NSN: 5331-00-007-6093
FSC Code: 5331
MPN: 00289

5331-00-250-0221 (00290H)

NIIN: 00-250-0221
In stock
NSN: 5331-00-250-0221
FSC Code: 5331
MPN: 00290H

5331-00-005-6216 (00290H)

NIIN: 00-005-6216
In stock
NSN: 5331-00-005-6216
FSC Code: 5331
MPN: 00290H

5331-00-890-3411 (00296)

NIIN: 00-890-3411
In stock
NSN: 5331-00-890-3411
FSC Code: 5331
MPN: 00296

5331-01-145-6893 (00294)

NIIN: 01-145-6893
In stock
NSN: 5331-01-145-6893
FSC Code: 5331
MPN: 00294

5331-00-432-4003 (00297C)

NIIN: 00-432-4003
In stock
NSN: 5331-00-432-4003
FSC Code: 5331
MPN: 00297C

5331-01-145-6894 (00297)

NIIN: 01-145-6894
In stock
NSN: 5331-01-145-6894
FSC Code: 5331
MPN: 00297

5331-01-022-1335 (0029970645)

NIIN: 01-022-1335
In stock
NSN: 5331-01-022-1335
FSC Code: 5331
MPN: 0029970645

5331-01-172-4646 (0029975748)

NIIN: 01-172-4646
In stock
NSN: 5331-01-172-4646
FSC Code: 5331
MPN: 0029975748

5331-01-018-7136 (0029974945)

NIIN: 01-018-7136
In stock
NSN: 5331-01-018-7136
FSC Code: 5331
MPN: 0029974945

5331-01-171-4710 (0029972148)

NIIN: 01-171-4710
In stock
NSN: 5331-01-171-4710
FSC Code: 5331
MPN: 0029972148

5331-01-024-4646 (0029977940)

NIIN: 01-024-4646
In stock
NSN: 5331-01-024-4646
FSC Code: 5331
MPN: 0029977940

5331-00-118-1139 (002-99955)

NIIN: 00-118-1139
In stock
NSN: 5331-00-118-1139
FSC Code: 5331
MPN: 00299955

5331-01-030-6672 (002-99984)

NIIN: 01-030-6672
In stock
NSN: 5331-01-030-6672
FSC Code: 5331
MPN: 00299984

5331-00-828-1925 (002-99980)

NIIN: 00-828-1925
In stock
NSN: 5331-00-828-1925
FSC Code: 5331
MPN: 00299980

5331-00-401-5164 (002-99996)

NIIN: 00-401-5164
In stock
NSN: 5331-00-401-5164
FSC Code: 5331
MPN: 00299996

5331-01-304-3454 (00299J)

NIIN: 01-304-3454
In stock
NSN: 5331-01-304-3454
FSC Code: 5331
MPN: 00299J

5331-00-166-1081 (002-99874)

NIIN: 00-166-1081
In stock
NSN: 5331-00-166-1081
FSC Code: 5331
MPN: 00299874

5331-01-296-8576 (003)

NIIN: 01-296-8576
In stock
NSN: 5331-01-296-8576
FSC Code: 5331
MPN: 003

5331-00-324-7731 (00301-035F70)

NIIN: 00-324-7731
In stock
NSN: 5331-00-324-7731
FSC Code: 5331
MPN: 00301035F70

5331-00-165-1972 (0030-1064G0VT)

NIIN: 00-165-1972
In stock
NSN: 5331-00-165-1972
FSC Code: 5331
MPN: 00301064G0VT

5331-01-311-5950 (00-301731)

NIIN: 01-311-5950
In stock
NSN: 5331-01-311-5950
FSC Code: 5331
MPN: 00301731

5331-00-834-5077 (003-024-022PC2)

NIIN: 00-834-5077
In stock
NSN: 5331-00-834-5077
FSC Code: 5331
MPN: 003024022PC2

5331-00-719-7476 (00304-0036-07)

NIIN: 00-719-7476
In stock
NSN: 5331-00-719-7476
FSC Code: 5331
MPN: 00304003607

5331-01-260-4692 (00307165)

NIIN: 01-260-4692
In stock
NSN: 5331-01-260-4692
FSC Code: 5331
MPN: 00307165

5331-01-101-6077 (003120)

NIIN: 01-101-6077
In stock
NSN: 5331-01-101-6077
FSC Code: 5331
MPN: 003120