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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.

5331-01-485-6438 (AMS-R-83485/1-163)

NIIN: 01-485-6438
In stock
NSN: 5331-01-485-6438
FSC Code: 5331
MPN: AMSR834851163

5331-01-379-3430 (5331PL0658547)

NIIN: 01-379-3430
In stock
NSN: 5331-01-379-3430
FSC Code: 5331
MPN: 5331PL0658547

5331-01-377-1499 (5331PL0736498)

NIIN: 01-377-1499
In stock
NSN: 5331-01-377-1499
FSC Code: 5331
MPN: 5331PL0736498

5331-01-485-6394 (5331PL0658568)

NIIN: 01-485-6394
In stock
NSN: 5331-01-485-6394
FSC Code: 5331
MPN: 5331PL0658568

5331-01-351-2603 (5331PL0658538)

NIIN: 01-351-2603
In stock
NSN: 5331-01-351-2603
FSC Code: 5331
MPN: 5331PL0658538

5331-01-485-6395 (5331PL0658569)

NIIN: 01-485-6395
In stock
NSN: 5331-01-485-6395
FSC Code: 5331
MPN: 5331PL0658569

5331-01-464-8606 (5331PL0658564)

NIIN: 01-464-8606
In stock
NSN: 5331-01-464-8606
FSC Code: 5331
MPN: 5331PL0658564

5331-01-482-8824 (5330-LL-N01-H815)

NIIN: 01-482-8824
In stock
NSN: 5331-01-482-8824
FSC Code: 5331
MPN: 5330LLN01H815

5331-01-169-5771 (A137R026-9)

NIIN: 01-169-5771
In stock
NSN: 5331-01-169-5771
FSC Code: 5331
MPN: A137R0269

5331-01-169-5772 (A137R113-9)

NIIN: 01-169-5772
In stock
NSN: 5331-01-169-5772
FSC Code: 5331
MPN: A137R1139

5331-01-480-3367 (5330PL0673273)

NIIN: 01-480-3367
In stock
NSN: 5331-01-480-3367
FSC Code: 5331
MPN: 5330PL0673273

5331-01-482-8814 (5330-LL-N01-J159)

NIIN: 01-482-8814
In stock
NSN: 5331-01-482-8814
FSC Code: 5331
MPN: 5330LLN01J159

5331-01-480-0078 (5331014681541N)

NIIN: 01-480-0078
In stock
NSN: 5331-01-480-0078
FSC Code: 5331
MPN: 5331014681541N

5331-99-522-3173 (5330-857048)

NIIN: 99-522-3173
In stock
NSN: 5331-99-522-3173
FSC Code: 5331
MPN: 5330857048

5331-01-265-6698 (A137R116-9)

NIIN: 01-265-6698
In stock
NSN: 5331-01-265-6698
FSC Code: 5331
MPN: A137R1169

5331-01-169-5776 (A137R125-9)

NIIN: 01-169-5776
In stock
NSN: 5331-01-169-5776
FSC Code: 5331
MPN: A137R1259

5331-01-169-5778 (A137R111-9)

NIIN: 01-169-5778
In stock
NSN: 5331-01-169-5778
FSC Code: 5331
MPN: A137R1119

5331-01-169-5775 (A137R121-9)

NIIN: 01-169-5775
In stock
NSN: 5331-01-169-5775
FSC Code: 5331
MPN: A137R1219

5331-01-171-2327 (A137R024-9)

NIIN: 01-171-2327
In stock
NSN: 5331-01-171-2327
FSC Code: 5331
MPN: A137R0249

5331-01-171-2324 (A137R018-9)

NIIN: 01-171-2324
In stock
NSN: 5331-01-171-2324
FSC Code: 5331
MPN: A137R0189

5331-01-423-7196 (5330-220)

NIIN: 01-423-7196
In stock
NSN: 5331-01-423-7196
FSC Code: 5331
MPN: 5330220

5331-01-169-5773 (A137R117-9)

NIIN: 01-169-5773
In stock
NSN: 5331-01-169-5773
FSC Code: 5331
MPN: A137R1179

5331-01-169-5768 (A137R023-9)

NIIN: 01-169-5768
In stock
NSN: 5331-01-169-5768
FSC Code: 5331
MPN: A137R0239

5331-01-171-2326 (A137R021-9)

NIIN: 01-171-2326
In stock
NSN: 5331-01-171-2326
FSC Code: 5331
MPN: A137R0219

5331-01-171-2349 (A137R020-9)

NIIN: 01-171-2349
In stock
NSN: 5331-01-171-2349
FSC Code: 5331
MPN: A137R0209

5331-01-399-3912 (533001PAF1347)

NIIN: 01-399-3912
In stock
NSN: 5331-01-399-3912
FSC Code: 5331
MPN: 533001PAF1347

5331-01-169-5769 (A137R017-9)

NIIN: 01-169-5769
In stock
NSN: 5331-01-169-5769
FSC Code: 5331
MPN: A137R0179

5331-01-412-5379 (533001PAF1404)

NIIN: 01-412-5379
In stock
NSN: 5331-01-412-5379
FSC Code: 5331
MPN: 533001PAF1404

5331-01-356-8264 (533001PAF1414)

NIIN: 01-356-8264
In stock
NSN: 5331-01-356-8264
FSC Code: 5331
MPN: 533001PAF1414

5331-01-412-5382 (533001PAF1411)

NIIN: 01-412-5382
In stock
NSN: 5331-01-412-5382
FSC Code: 5331
MPN: 533001PAF1411

5331-01-171-2322 (A137R015-9)

NIIN: 01-171-2322
In stock
NSN: 5331-01-171-2322
FSC Code: 5331
MPN: A137R0159

5331-01-360-2733 (533001PAF1303)

NIIN: 01-360-2733
In stock
NSN: 5331-01-360-2733
FSC Code: 5331
MPN: 533001PAF1303

5331-01-171-0424 (A137R013-9)

NIIN: 01-171-0424
In stock
NSN: 5331-01-171-0424
FSC Code: 5331
MPN: A137R0139

5331-01-171-2321 (A137R011-9)

NIIN: 01-171-2321
In stock
NSN: 5331-01-171-2321
FSC Code: 5331
MPN: A137R0119

5331-01-171-2320 (A137R004)

NIIN: 01-171-2320
In stock
NSN: 5331-01-171-2320
FSC Code: 5331
MPN: A137R004

5331-01-171-9876 (A137R003-9)

NIIN: 01-171-9876
In stock
NSN: 5331-01-171-9876
FSC Code: 5331
MPN: A137R0039

5331-01-544-6460 (532-R08A)

NIIN: 01-544-6460
In stock
NSN: 5331-01-544-6460
FSC Code: 5331
MPN: 532R08A

5331-00-765-2674 (A1341N)

NIIN: 00-765-2674
In stock
NSN: 5331-00-765-2674
FSC Code: 5331
MPN: A1341N

5331-01-008-6541 (A133125)

NIIN: 01-008-6541
In stock
NSN: 5331-01-008-6541
FSC Code: 5331
MPN: A133125

5331-01-560-2984 (5327-62)

NIIN: 01-560-2984
In stock
NSN: 5331-01-560-2984
FSC Code: 5331
MPN: 532762

5331-01-009-7022 (A132123)

NIIN: 01-009-7022
In stock
NSN: 5331-01-009-7022
FSC Code: 5331
MPN: A132123

5331-01-560-2996 (5326-62)

NIIN: 01-560-2996
In stock
NSN: 5331-01-560-2996
FSC Code: 5331
MPN: 532662

5331-01-469-2402 (5-321-N674-70)

NIIN: 01-469-2402
In stock
NSN: 5331-01-469-2402
FSC Code: 5331
MPN: 5321N67470

5331-01-478-2490 (5-320-V884-75)

NIIN: 01-478-2490
In stock
NSN: 5331-01-478-2490
FSC Code: 5331
MPN: 5320V88475

5331-01-571-2197 (B0612-70-5-320)

NIIN: 01-571-2197
In stock
NSN: 5331-01-571-2197
FSC Code: 5331
MPN: B0612705320

5331-01-177-8191 (A-12001)

NIIN: 01-177-8191
In stock
NSN: 5331-01-177-8191
FSC Code: 5331
MPN: A12001

5331-01-264-4173 (A11537-4)

NIIN: 01-264-4173
In stock
NSN: 5331-01-264-4173
FSC Code: 5331
MPN: A115374

5331-01-171-6306 (A11507)

NIIN: 01-171-6306
In stock
NSN: 5331-01-171-6306
FSC Code: 5331
MPN: A11507