Skip to content
News Industries Part Directory Excess Inventory Management Solutions Sitemap

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.

5331-25-150-2578 (4-18449)

NIIN: 25-150-2578
In stock
NSN: 5331-25-150-2578
FSC Code: 5331
MPN: 418449

5331-25-150-2583 (4-18449)

NIIN: 25-150-2583
In stock
NSN: 5331-25-150-2583
FSC Code: 5331
MPN: 418449

5331-25-150-2582 (4-18449)

NIIN: 25-150-2582
In stock
NSN: 5331-25-150-2582
FSC Code: 5331
MPN: 418449

5331-25-150-2576 (4-18449)

NIIN: 25-150-2576
In stock
NSN: 5331-25-150-2576
FSC Code: 5331
MPN: 418449

5331-25-150-2587 (4-18247)

NIIN: 25-150-2587
In stock
NSN: 5331-25-150-2587
FSC Code: 5331
MPN: 418247

5331-25-150-2586 (4-18247)

NIIN: 25-150-2586
In stock
NSN: 5331-25-150-2586
FSC Code: 5331
MPN: 418247

5331-25-150-2585 (4-18247)

NIIN: 25-150-2585
In stock
NSN: 5331-25-150-2585
FSC Code: 5331
MPN: 418247

5331-00-566-7653 (8345406-12)

NIIN: 00-566-7653
In stock
NSN: 5331-00-566-7653
FSC Code: 5331
MPN: 834540612

5331-00-751-3090 (8-344601ITEM16)

NIIN: 00-751-3090
In stock
NSN: 5331-00-751-3090
FSC Code: 5331
MPN: 8344601ITEM16

5331-01-420-1539 (4178-090)

NIIN: 01-420-1539
In stock
NSN: 5331-01-420-1539
FSC Code: 5331
MPN: 4178090

5331-01-249-1635 (8343NT)

NIIN: 01-249-1635
In stock
NSN: 5331-01-249-1635
FSC Code: 5331
MPN: 8343NT

5331-01-021-0877 (834-16)

NIIN: 01-021-0877
In stock
NSN: 5331-01-021-0877
FSC Code: 5331
MPN: 83416

5331-01-297-7424 (834-010-1)

NIIN: 01-297-7424
In stock
NSN: 5331-01-297-7424
FSC Code: 5331
MPN: 8340101

5331-01-300-0365 (834-008-1)

NIIN: 01-300-0365
In stock
NSN: 5331-01-300-0365
FSC Code: 5331
MPN: 8340081

5331-01-371-7926 (417-33-11410)

NIIN: 01-371-7926
In stock
NSN: 5331-01-371-7926
FSC Code: 5331
MPN: 4173311410

5331-01-371-7925 (417-33-11420)

NIIN: 01-371-7925
In stock
NSN: 5331-01-371-7925
FSC Code: 5331
MPN: 4173311420

5331-01-122-8738 (8-332-N300-90)

NIIN: 01-122-8738
In stock
NSN: 5331-01-122-8738
FSC Code: 5331
MPN: 8332N30090

5331-00-071-2739 (8331-486BV)

NIIN: 00-071-2739
In stock
NSN: 5331-00-071-2739
FSC Code: 5331
MPN: 8331486BV

5331-01-171-6295 (8330-8)

NIIN: 01-171-6295
In stock
NSN: 5331-01-171-6295
FSC Code: 5331
MPN: 83308

5331-00-012-0468 (8-329N300-9)

NIIN: 00-012-0468
In stock
NSN: 5331-00-012-0468
FSC Code: 5331
MPN: 8329N3009

5331-01-554-6112 (4170-200-241)

NIIN: 01-554-6112
In stock
NSN: 5331-01-554-6112
FSC Code: 5331
MPN: 4170200241

5331-01-554-6129 (4170-200-249)

NIIN: 01-554-6129
In stock
NSN: 5331-01-554-6129
FSC Code: 5331
MPN: 4170200249

5331-00-412-9936 (8325-366Y)

NIIN: 00-412-9936
In stock
NSN: 5331-00-412-9936
FSC Code: 5331
MPN: 8325366Y

5331-00-071-2738 (8327-486BV)

NIIN: 00-071-2738
In stock
NSN: 5331-00-071-2738
FSC Code: 5331
MPN: 8327486BV

5331-01-410-7884 (B412-0016)

NIIN: 01-410-7884
In stock
NSN: 5331-01-410-7884
FSC Code: 5331
MPN: B4120016

5331-01-410-7867 (41697-0)

NIIN: 01-410-7867
In stock
NSN: 5331-01-410-7867
FSC Code: 5331
MPN: 416970

5331-01-410-7868 (41698-0)

NIIN: 01-410-7868
In stock
NSN: 5331-01-410-7868
FSC Code: 5331
MPN: 416980

5331-01-410-7869 (41696-0)

NIIN: 01-410-7869
In stock
NSN: 5331-01-410-7869
FSC Code: 5331
MPN: 416960

5331-00-599-4161 (831727-3)

NIIN: 00-599-4161
In stock
NSN: 5331-00-599-4161
FSC Code: 5331
MPN: 8317273

5331-01-335-7596 (8316-001)

NIIN: 01-335-7596
In stock
NSN: 5331-01-335-7596
FSC Code: 5331
MPN: 8316001

5331-01-091-7784 (831-2255)

NIIN: 01-091-7784
In stock
NSN: 5331-01-091-7784
FSC Code: 5331
MPN: 8312255

5331-01-200-1238 (831161-21)

NIIN: 01-200-1238
In stock
NSN: 5331-01-200-1238
FSC Code: 5331
MPN: 83116121

5331-01-200-1239 (831161-7)

NIIN: 01-200-1239
In stock
NSN: 5331-01-200-1239
FSC Code: 5331
MPN: 8311617

5331-01-200-1235 (831161-4)

NIIN: 01-200-1235
In stock
NSN: 5331-01-200-1235
FSC Code: 5331
MPN: 8311614

5331-01-526-5333 (7385919)

NIIN: 01-526-5333
In stock
NSN: 5331-01-526-5333
FSC Code: 5331
MPN: 7385919

5331-01-521-8979 (41582N)

NIIN: 01-521-8979
In stock
NSN: 5331-01-521-8979
FSC Code: 5331
MPN: 41582N

5331-01-534-6566 (41580N)

NIIN: 01-534-6566
In stock
NSN: 5331-01-534-6566
FSC Code: 5331
MPN: 41580N

5331-01-534-6570 (41581N)

NIIN: 01-534-6570
In stock
NSN: 5331-01-534-6570
FSC Code: 5331
MPN: 41581N

5331-01-534-6562 (41579N)

NIIN: 01-534-6562
In stock
NSN: 5331-01-534-6562
FSC Code: 5331
MPN: 41579N

5331-01-513-9987 (E0540-80/AS568-902)

NIIN: 01-513-9987
In stock
NSN: 5331-01-513-9987
FSC Code: 5331
MPN: E054080AS568902

5331-01-275-9430 (83022201-2)

NIIN: 01-275-9430
In stock
NSN: 5331-01-275-9430
FSC Code: 5331
MPN: 830222012

5331-01-275-9429 (83022201-2)

NIIN: 01-275-9429
In stock
NSN: 5331-01-275-9429
FSC Code: 5331
MPN: 830222012

5331-01-275-9431 (83022201-11)

NIIN: 01-275-9431
In stock
NSN: 5331-01-275-9431
FSC Code: 5331
MPN: 8302220111

5331-01-469-6917 (9379-4330PC5)

NIIN: 01-469-6917
In stock
NSN: 5331-01-469-6917
FSC Code: 5331
MPN: 93794330PC5

5331-01-487-8548 (M83248/2-347)

NIIN: 01-487-8548
In stock
NSN: 5331-01-487-8548
FSC Code: 5331
MPN: M832482347

5331-01-469-6918 (E0540-80/AS568-235)

NIIN: 01-469-6918
In stock
NSN: 5331-01-469-6918
FSC Code: 5331
MPN: E054080AS568235

5331-01-469-6916 (E0540-80/AS568-214)

NIIN: 01-469-6916
In stock
NSN: 5331-01-469-6916
FSC Code: 5331
MPN: E054080AS568214

5331-01-335-6919 (8301/2INITEM10)

NIIN: 01-335-6919
In stock
NSN: 5331-01-335-6919
FSC Code: 5331
MPN: 83012INITEM10