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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.

5331-01-304-3453 (10394120)

NIIN: 01-304-3453
In stock
NSN: 5331-01-304-3453
FSC Code: 5331
MPN: 10394120

5331-00-166-1087 (10393656)

NIIN: 00-166-1087
In stock
NSN: 5331-00-166-1087
FSC Code: 5331
MPN: 10393656

5331-00-633-6827 (10394091)

NIIN: 00-633-6827
In stock
NSN: 5331-00-633-6827
FSC Code: 5331
MPN: 10394091

5331-01-082-8730 (10396502)

NIIN: 01-082-8730
In stock
NSN: 5331-01-082-8730
FSC Code: 5331
MPN: 10396502

5331-01-183-8395 (10398164)

NIIN: 01-183-8395
In stock
NSN: 5331-01-183-8395
FSC Code: 5331
MPN: 10398164

5331-00-316-0358 (10399573)

NIIN: 00-316-0358
In stock
NSN: 5331-00-316-0358
FSC Code: 5331
MPN: 10399573

5331-00-505-3924 (10399382)

NIIN: 00-505-3924
In stock
NSN: 5331-00-505-3924
FSC Code: 5331
MPN: 10399382

5331-00-297-7106 (10399510)

NIIN: 00-297-7106
In stock
NSN: 5331-00-297-7106
FSC Code: 5331
MPN: 10399510

5331-01-110-7938 (10399485)

NIIN: 01-110-7938
In stock
NSN: 5331-01-110-7938
FSC Code: 5331
MPN: 10399485

5331-01-132-1551 (10414268)

NIIN: 01-132-1551
In stock
NSN: 5331-01-132-1551
FSC Code: 5331
MPN: 10414268

5331-01-007-1595 (10413134)

NIIN: 01-007-1595
In stock
NSN: 5331-01-007-1595
FSC Code: 5331
MPN: 10413134

5331-00-542-1456 (10424368)

NIIN: 00-542-1456
In stock
NSN: 5331-00-542-1456
FSC Code: 5331
MPN: 10424368

5331-01-288-8357 (10424387)

NIIN: 01-288-8357
In stock
NSN: 5331-01-288-8357
FSC Code: 5331
MPN: 10424387

5331-01-185-6305 (10425745)

NIIN: 01-185-6305
In stock
NSN: 5331-01-185-6305
FSC Code: 5331
MPN: 10425745

5331-01-079-5184 (10425798)

NIIN: 01-079-5184
In stock
NSN: 5331-01-079-5184
FSC Code: 5331
MPN: 10425798

5331-00-599-2537 (10421705)

NIIN: 00-599-2537
In stock
NSN: 5331-00-599-2537
FSC Code: 5331
MPN: 10421705

5331-00-663-6893 (10434271)

NIIN: 00-663-6893
In stock
NSN: 5331-00-663-6893
FSC Code: 5331
MPN: 10434271

5331-01-117-3473 (10425830)

NIIN: 01-117-3473
In stock
NSN: 5331-01-117-3473
FSC Code: 5331
MPN: 10425830

5331-00-198-6197 (10440902)

NIIN: 00-198-6197
In stock
NSN: 5331-00-198-6197
FSC Code: 5331
MPN: 10440902

5331-00-806-7027 (10440888)

NIIN: 00-806-7027
In stock
NSN: 5331-00-806-7027
FSC Code: 5331
MPN: 10440888

5331-01-197-0895 (10444079)

NIIN: 01-197-0895
In stock
NSN: 5331-01-197-0895
FSC Code: 5331
MPN: 10444079

5331-00-165-1966 (10443997)

NIIN: 00-165-1966
In stock
NSN: 5331-00-165-1966
FSC Code: 5331
MPN: 10443997

5331-01-126-8194 (10444022)

NIIN: 01-126-8194
In stock
NSN: 5331-01-126-8194
FSC Code: 5331
MPN: 10444022

5331-00-175-4974 (10444186)

NIIN: 00-175-4974
In stock
NSN: 5331-00-175-4974
FSC Code: 5331
MPN: 10444186

5331-01-318-9115 (10444151)

NIIN: 01-318-9115
In stock
NSN: 5331-01-318-9115
FSC Code: 5331
MPN: 10444151

5331-01-147-1264 (10444023)

NIIN: 01-147-1264
In stock
NSN: 5331-01-147-1264
FSC Code: 5331
MPN: 10444023

5331-01-283-0518 (10444077)

NIIN: 01-283-0518
In stock
NSN: 5331-01-283-0518
FSC Code: 5331
MPN: 10444077

5331-01-211-7498 (10444076)

NIIN: 01-211-7498
In stock
NSN: 5331-01-211-7498
FSC Code: 5331
MPN: 10444076

5331-01-281-3848 (10441973)

NIIN: 01-281-3848
In stock
NSN: 5331-01-281-3848
FSC Code: 5331
MPN: 10441973

5331-01-075-2184 (10446886)

NIIN: 01-075-2184
In stock
NSN: 5331-01-075-2184
FSC Code: 5331
MPN: 10446886

5331-00-501-9702 (10447340)

NIIN: 00-501-9702
In stock
NSN: 5331-00-501-9702
FSC Code: 5331
MPN: 10447340

5331-01-184-3906 (10450093)

NIIN: 01-184-3906
In stock
NSN: 5331-01-184-3906
FSC Code: 5331
MPN: 10450093

5331-01-185-2583 (10450094)

NIIN: 01-185-2583
In stock
NSN: 5331-01-185-2583
FSC Code: 5331
MPN: 10450094

5331-00-835-7693 (10447498)

NIIN: 00-835-7693
In stock
NSN: 5331-00-835-7693
FSC Code: 5331
MPN: 10447498

5331-00-111-7407 (10456418)

NIIN: 00-111-7407
In stock
NSN: 5331-00-111-7407
FSC Code: 5331
MPN: 10456418

5331-00-949-0037 (10452673)

NIIN: 00-949-0037
In stock
NSN: 5331-00-949-0037
FSC Code: 5331
MPN: 10452673

5331-00-490-4600 (10465219)

NIIN: 00-490-4600
In stock
NSN: 5331-00-490-4600
FSC Code: 5331
MPN: 10465219

5331-00-759-2136 (10466151)

NIIN: 00-759-2136
In stock
NSN: 5331-00-759-2136
FSC Code: 5331
MPN: 10466151

5331-01-007-1617 (10465124)

NIIN: 01-007-1617
In stock
NSN: 5331-01-007-1617
FSC Code: 5331
MPN: 10465124

5331-01-258-0875 (10469649)

NIIN: 01-258-0875
In stock
NSN: 5331-01-258-0875
FSC Code: 5331
MPN: 10469649

5331-01-051-8126 (10469682)

NIIN: 01-051-8126
In stock
NSN: 5331-01-051-8126
FSC Code: 5331
MPN: 10469682

5331-00-494-2477 (10469685)

NIIN: 00-494-2477
In stock
NSN: 5331-00-494-2477
FSC Code: 5331
MPN: 10469685

5331-00-291-3069 (10473594)

NIIN: 00-291-3069
In stock
NSN: 5331-00-291-3069
FSC Code: 5331
MPN: 10473594

5331-01-025-1622 (10476037)

NIIN: 01-025-1622
In stock
NSN: 5331-01-025-1622
FSC Code: 5331
MPN: 10476037

5331-00-759-2135 (10473959)

NIIN: 00-759-2135
In stock
NSN: 5331-00-759-2135
FSC Code: 5331
MPN: 10473959

5331-01-167-1897 (10500249)

NIIN: 01-167-1897
In stock
NSN: 5331-01-167-1897
FSC Code: 5331
MPN: 10500249

5331-00-618-2514 (10500258)

NIIN: 00-618-2514
In stock
NSN: 5331-00-618-2514
FSC Code: 5331
MPN: 10500258

5331-01-155-7433 (10500772)

NIIN: 01-155-7433
In stock
NSN: 5331-01-155-7433
FSC Code: 5331
MPN: 10500772