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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.

5331-01-334-3654 (87034A1126)

NIIN: 01-334-3654
In stock
NSN: 5331-01-334-3654
FSC Code: 5331
MPN: 87034A1126

5331-00-210-5138 (87033S94)

NIIN: 00-210-5138
In stock
NSN: 5331-00-210-5138
FSC Code: 5331
MPN: 87033S94

5331-01-530-5071 (5M2612-100)

NIIN: 01-530-5071
In stock
NSN: 5331-01-530-5071
FSC Code: 5331
MPN: 5M2612100

5331-01-242-2489 (8703027-05)

NIIN: 01-242-2489
In stock
NSN: 5331-01-242-2489
FSC Code: 5331
MPN: 870302705

5331-01-377-7313 (Q4429-366Y)

NIIN: 01-377-7313
In stock
NSN: 5331-01-377-7313
FSC Code: 5331
MPN: Q4429366Y

5331-01-320-5829 (870-205)

NIIN: 01-320-5829
In stock
NSN: 5331-01-320-5829
FSC Code: 5331
MPN: 870205

5331-00-491-7656 (87006-S92)

NIIN: 00-491-7656
In stock
NSN: 5331-00-491-7656
FSC Code: 5331
MPN: 87006S92

5331-01-245-3597 (8700602-02)

NIIN: 01-245-3597
In stock
NSN: 5331-01-245-3597
FSC Code: 5331
MPN: 870060202

5331-00-492-0365 (87004S92)

NIIN: 00-492-0365
In stock
NSN: 5331-00-492-0365
FSC Code: 5331
MPN: 87004S92

5331-00-707-0827 (87000S91)

NIIN: 00-707-0827
In stock
NSN: 5331-00-707-0827
FSC Code: 5331
MPN: 87000S91

5331-01-093-2373 (86W51)

NIIN: 01-093-2373
In stock
NSN: 5331-01-093-2373
FSC Code: 5331
MPN: 86W51

5331-00-797-4329 (86W54)

NIIN: 00-797-4329
In stock
NSN: 5331-00-797-4329
FSC Code: 5331
MPN: 86W54

5331-01-388-5665 (442-154)

NIIN: 01-388-5665
In stock
NSN: 5331-01-388-5665
FSC Code: 5331
MPN: 442154

5331-00-838-7687 (86M71-36PC35)

NIIN: 00-838-7687
In stock
NSN: 5331-00-838-7687
FSC Code: 5331
MPN: 86M7136PC35

5331-00-838-7685 (86M71-36PC37)

NIIN: 00-838-7685
In stock
NSN: 5331-00-838-7685
FSC Code: 5331
MPN: 86M7136PC37

5331-01-441-1316 (44-1829-34-040)

NIIN: 01-441-1316
In stock
NSN: 5331-01-441-1316
FSC Code: 5331
MPN: 44182934040

5331-01-424-0622 (44-1822)

NIIN: 01-424-0622
In stock
NSN: 5331-01-424-0622
FSC Code: 5331
MPN: 441822

5331-01-438-0606 (44-1792)

NIIN: 01-438-0606
In stock
NSN: 5331-01-438-0606
FSC Code: 5331
MPN: 441792

5331-01-211-7351 (8696B)

NIIN: 01-211-7351
In stock
NSN: 5331-01-211-7351
FSC Code: 5331
MPN: 8696B

5331-01-127-8550 (8693035-2)

NIIN: 01-127-8550
In stock
NSN: 5331-01-127-8550
FSC Code: 5331
MPN: 86930352

5331-01-532-5674 (441-2005)

NIIN: 01-532-5674
In stock
NSN: 5331-01-532-5674
FSC Code: 5331
MPN: 4412005

5331-00-143-8551 (869003-325)

NIIN: 00-143-8551
In stock
NSN: 5331-00-143-8551
FSC Code: 5331
MPN: 869003325

5331-01-343-1056 (4410571-9120)

NIIN: 01-343-1056
In stock
NSN: 5331-01-343-1056
FSC Code: 5331
MPN: 44105719120

5331-01-343-1054 (4410481-9060)

NIIN: 01-343-1054
In stock
NSN: 5331-01-343-1054
FSC Code: 5331
MPN: 44104819060

5331-01-535-6560 (44101-1000)

NIIN: 01-535-6560
In stock
NSN: 5331-01-535-6560
FSC Code: 5331
MPN: 441011000

5331-01-495-4013 (440780R1)

NIIN: 01-495-4013
In stock
NSN: 5331-01-495-4013
FSC Code: 5331
MPN: 440780R1

5331-01-333-2690 (8682-000-420)

NIIN: 01-333-2690
In stock
NSN: 5331-01-333-2690
FSC Code: 5331
MPN: 8682000420

5331-01-230-3245 (8682-001-087)

NIIN: 01-230-3245
In stock
NSN: 5331-01-230-3245
FSC Code: 5331
MPN: 8682001087

5331-01-417-6498 (4405592-1150)

NIIN: 01-417-6498
In stock
NSN: 5331-01-417-6498
FSC Code: 5331
MPN: 44055921150

5331-01-417-6493 (4405592-2230)

NIIN: 01-417-6493
In stock
NSN: 5331-01-417-6493
FSC Code: 5331
MPN: 44055922230

5331-01-423-0744 (4405174-1190)

NIIN: 01-423-0744
In stock
NSN: 5331-01-423-0744
FSC Code: 5331
MPN: 44051741190

5331-01-422-2129 (4405174-0120)

NIIN: 01-422-2129
In stock
NSN: 5331-01-422-2129
FSC Code: 5331
MPN: 44051740120

5331-01-422-2131 (4405174-1110)

NIIN: 01-422-2131
In stock
NSN: 5331-01-422-2131
FSC Code: 5331
MPN: 44051741110

5331-01-422-2130 (4405174-0070)

NIIN: 01-422-2130
In stock
NSN: 5331-01-422-2130
FSC Code: 5331
MPN: 44051740070

5331-01-422-2133 (4405174-0090)

NIIN: 01-422-2133
In stock
NSN: 5331-01-422-2133
FSC Code: 5331
MPN: 44051740090

5331-01-439-6518 (4-40462802)

NIIN: 01-439-6518
In stock
NSN: 5331-01-439-6518
FSC Code: 5331
MPN: 440462802

5331-01-029-0659 (868-004)

NIIN: 01-029-0659
In stock
NSN: 5331-01-029-0659
FSC Code: 5331
MPN: 868004

5331-01-483-2866 (4400873-0164)

NIIN: 01-483-2866
In stock
NSN: 5331-01-483-2866
FSC Code: 5331
MPN: 44008730164

5331-01-343-1055 (4400891-0134)

NIIN: 01-343-1055
In stock
NSN: 5331-01-343-1055
FSC Code: 5331
MPN: 44008910134

5331-01-483-2867 (4400873-0184)

NIIN: 01-483-2867
In stock
NSN: 5331-01-483-2867
FSC Code: 5331
MPN: 44008730184

5331-01-393-7504 (4400871-134CP)

NIIN: 01-393-7504
In stock
NSN: 5331-01-393-7504
FSC Code: 5331
MPN: 4400871134CP

5331-01-557-7615 (440073-0270)

NIIN: 01-557-7615
In stock
NSN: 5331-01-557-7615
FSC Code: 5331
MPN: 4400730270

5331-01-355-2230 (4400571-0130)

NIIN: 01-355-2230
In stock
NSN: 5331-01-355-2230
FSC Code: 5331
MPN: 44005710130

5331-01-350-6010 (4400571-0090)

NIIN: 01-350-6010
In stock
NSN: 5331-01-350-6010
FSC Code: 5331
MPN: 44005710090

5331-00-994-8917 (8668-345X3PC8)

NIIN: 00-994-8917
In stock
NSN: 5331-00-994-8917
FSC Code: 5331
MPN: 8668345X3PC8

5331-01-453-1286 (4400483-0070)

NIIN: 01-453-1286
In stock
NSN: 5331-01-453-1286
FSC Code: 5331
MPN: 44004830070

5331-01-486-7856 (4400173-1270)

NIIN: 01-486-7856
In stock
NSN: 5331-01-486-7856
FSC Code: 5331
MPN: 44001731270

5331-01-468-7756 (4400181-0080)

NIIN: 01-468-7756
In stock
NSN: 5331-01-468-7756
FSC Code: 5331
MPN: 44001810080