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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.

5331-00-970-4139 (GA)

NIIN: 00-970-4139
In stock
NSN: 5331-00-970-4139
FSC Code: 5331
MPN: GA

5331-01-126-2645 (GA)

NIIN: 01-126-2645
In stock
NSN: 5331-01-126-2645
FSC Code: 5331
MPN: GA

5331-00-052-1853 (GA)

NIIN: 00-052-1853
In stock
NSN: 5331-00-052-1853
FSC Code: 5331
MPN: GA

5331-01-126-1652 (GA)

NIIN: 01-126-1652
In stock
NSN: 5331-01-126-1652
FSC Code: 5331
MPN: GA

5331-01-126-8192 (GA)

NIIN: 01-126-8192
In stock
NSN: 5331-01-126-8192
FSC Code: 5331
MPN: GA

5331-00-756-9522 (G89E10-17)

NIIN: 00-756-9522
In stock
NSN: 5331-00-756-9522
FSC Code: 5331
MPN: G89E1017

5331-01-385-0748 (DB-02-02-006)

NIIN: 01-385-0748
In stock
NSN: 5331-01-385-0748
FSC Code: 5331
MPN: DB0202006

5331-01-268-3616 (G822133)

NIIN: 01-268-3616
In stock
NSN: 5331-01-268-3616
FSC Code: 5331
MPN: G822133

5331-01-313-0248 (G820952-5)

NIIN: 01-313-0248
In stock
NSN: 5331-01-313-0248
FSC Code: 5331
MPN: G8209525

5331-01-183-9277 (G820952-4)

NIIN: 01-183-9277
In stock
NSN: 5331-01-183-9277
FSC Code: 5331
MPN: G8209524

5331-01-437-5815 (75483-4)

NIIN: 01-437-5815
In stock
NSN: 5331-01-437-5815
FSC Code: 5331
MPN: 754834

5331-00-139-7461 (G7-76)

NIIN: 00-139-7461
In stock
NSN: 5331-00-139-7461
FSC Code: 5331
MPN: G776

5331-00-139-7418 (G7-71)

NIIN: 00-139-7418
In stock
NSN: 5331-00-139-7418
FSC Code: 5331
MPN: G771

5331-01-428-6073 (754-4-37002-016)

NIIN: 01-428-6073
In stock
NSN: 5331-01-428-6073
FSC Code: 5331
MPN: 754437002016

5331-01-428-6131 (754-4-37002-150)

NIIN: 01-428-6131
In stock
NSN: 5331-01-428-6131
FSC Code: 5331
MPN: 754437002150

5331-01-428-6128 (754-4-37002-149)

NIIN: 01-428-6128
In stock
NSN: 5331-01-428-6128
FSC Code: 5331
MPN: 754437002149

5331-01-428-6102 (754-4-37002-130)

NIIN: 01-428-6102
In stock
NSN: 5331-01-428-6102
FSC Code: 5331
MPN: 754437002130

5331-01-428-6064 (754-4-37002-012)

NIIN: 01-428-6064
In stock
NSN: 5331-01-428-6064
FSC Code: 5331
MPN: 754437002012

5331-01-428-6098 (754-4-37002-124)

NIIN: 01-428-6098
In stock
NSN: 5331-01-428-6098
FSC Code: 5331
MPN: 754437002124

5331-01-428-4254 (754-4-37002-011)

NIIN: 01-428-4254
In stock
NSN: 5331-01-428-4254
FSC Code: 5331
MPN: 754437002011

5331-01-428-6104 (754-4-37002-131)

NIIN: 01-428-6104
In stock
NSN: 5331-01-428-6104
FSC Code: 5331
MPN: 754437002131

5331-01-428-6076 (754-4-37002-111)

NIIN: 01-428-6076
In stock
NSN: 5331-01-428-6076
FSC Code: 5331
MPN: 754437002111

5331-01-428-6086 (754-4-37002-122)

NIIN: 01-428-6086
In stock
NSN: 5331-01-428-6086
FSC Code: 5331
MPN: 754437002122

5331-01-428-6082 (754-4-37002-117)

NIIN: 01-428-6082
In stock
NSN: 5331-01-428-6082
FSC Code: 5331
MPN: 754437002117

5331-01-428-6068 (754-4-37002-013)

NIIN: 01-428-6068
In stock
NSN: 5331-01-428-6068
FSC Code: 5331
MPN: 754437002013

5331-99-608-0363 (754-4-24860-031)

NIIN: 99-608-0363
In stock
NSN: 5331-99-608-0363
FSC Code: 5331
MPN: 754424860031

5331-01-276-8445 (G732.044)

NIIN: 01-276-8445
In stock
NSN: 5331-01-276-8445
FSC Code: 5331
MPN: G732044

5331-99-573-0641 (754/4/25183/012)

NIIN: 99-573-0641
In stock
NSN: 5331-99-573-0641
FSC Code: 5331
MPN: 754425183012

5331-00-070-6521 (G68-93)

NIIN: 00-070-6521
In stock
NSN: 5331-00-070-6521
FSC Code: 5331
MPN: G6893

5331-01-432-3615 (77315000-DS-G-74893)

NIIN: 01-432-3615
In stock
NSN: 5331-01-432-3615
FSC Code: 5331
MPN: 77315000DSG74893

5331-01-432-1219 (75182000-DS-G-74893)

NIIN: 01-432-1219
In stock
NSN: 5331-01-432-1219
FSC Code: 5331
MPN: 75182000DSG74893

5331-01-122-4613 (G-63707)

NIIN: 01-122-4613
In stock
NSN: 5331-01-122-4613
FSC Code: 5331
MPN: G63707

5331-01-143-6322 (G-63533)

NIIN: 01-143-6322
In stock
NSN: 5331-01-143-6322
FSC Code: 5331
MPN: G63533

5331-01-122-0492 (G-63517)

NIIN: 01-122-0492
In stock
NSN: 5331-01-122-0492
FSC Code: 5331
MPN: G63517

5331-01-122-4612 (G-61513)

NIIN: 01-122-4612
In stock
NSN: 5331-01-122-4612
FSC Code: 5331
MPN: G61513

5331-01-324-4821 (G-612)

NIIN: 01-324-4821
In stock
NSN: 5331-01-324-4821
FSC Code: 5331
MPN: G612

5331-00-085-2868 (G6044)

NIIN: 00-085-2868
In stock
NSN: 5331-00-085-2868
FSC Code: 5331
MPN: G6044

5331-01-341-6487 (751198-23)

NIIN: 01-341-6487
In stock
NSN: 5331-01-341-6487
FSC Code: 5331
MPN: 75119823

5331-01-444-6130 (751143-007)

NIIN: 01-444-6130
In stock
NSN: 5331-01-444-6130
FSC Code: 5331
MPN: 751143007

5331-01-444-0287 (751146-005)

NIIN: 01-444-0287
In stock
NSN: 5331-01-444-0287
FSC Code: 5331
MPN: 751146005

5331-01-444-0286 (751149-004)

NIIN: 01-444-0286
In stock
NSN: 5331-01-444-0286
FSC Code: 5331
MPN: 751149004

5331-01-444-0290 (751146-011)

NIIN: 01-444-0290
In stock
NSN: 5331-01-444-0290
FSC Code: 5331
MPN: 751146011

5331-01-397-5134 (M83485/1-141)

NIIN: 01-397-5134
In stock
NSN: 5331-01-397-5134
FSC Code: 5331
MPN: M834851141

5331-00-779-0632 (G557-2-14)

NIIN: 00-779-0632
In stock
NSN: 5331-00-779-0632
FSC Code: 5331
MPN: G557214

5331-01-475-6304 (7504201AA)

NIIN: 01-475-6304
In stock
NSN: 5331-01-475-6304
FSC Code: 5331
MPN: 7504201AA

5331-01-475-6334 (7504201AB)

NIIN: 01-475-6334
In stock
NSN: 5331-01-475-6334
FSC Code: 5331
MPN: 7504201AB

5331-01-497-8487 (7504201AA)

NIIN: 01-497-8487
In stock
NSN: 5331-01-497-8487
FSC Code: 5331
MPN: 7504201AA

5331-01-475-6342 (7504201AF)

NIIN: 01-475-6342
In stock
NSN: 5331-01-475-6342
FSC Code: 5331
MPN: 7504201AF