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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.

5331-01-005-0528 (2-381V0747-75)

NIIN: 01-005-0528
In stock
NSN: 5331-01-005-0528
FSC Code: 5331
MPN: 2381V074775

5331-01-523-7172 (013-A-700)

NIIN: 01-523-7172
In stock
NSN: 5331-01-523-7172
FSC Code: 5331
MPN: 013A700

5331-01-294-2179 (238270-112)

NIIN: 01-294-2179
In stock
NSN: 5331-01-294-2179
FSC Code: 5331
MPN: 238270112

5331-01-294-2180 (238290-013)

NIIN: 01-294-2180
In stock
NSN: 5331-01-294-2180
FSC Code: 5331
MPN: 238290013

5331-01-185-0344 (238290-902)

NIIN: 01-185-0344
In stock
NSN: 5331-01-185-0344
FSC Code: 5331
MPN: 238290902

5331-14-383-0734 (01400C0000A24B7)

NIIN: 14-383-0734
In stock
NSN: 5331-14-383-0734
FSC Code: 5331
MPN: 01400C0000A24B7

5331-00-781-4551 (238290-232)

NIIN: 00-781-4551
In stock
NSN: 5331-00-781-4551
FSC Code: 5331
MPN: 238290232

5331-01-222-7965 (238290-902)

NIIN: 01-222-7965
In stock
NSN: 5331-01-222-7965
FSC Code: 5331
MPN: 238290902

5331-00-352-0517 (2-382C1124-70)

NIIN: 00-352-0517
In stock
NSN: 5331-00-352-0517
FSC Code: 5331
MPN: 2382C112470

5331-01-294-2181 (238290-908)

NIIN: 01-294-2181
In stock
NSN: 5331-01-294-2181
FSC Code: 5331
MPN: 238290908

5331-01-431-9888 (01-402-0010)

NIIN: 01-431-9888
In stock
NSN: 5331-01-431-9888
FSC Code: 5331
MPN: 014020010

5331-01-561-9620 (01-402-0030)

NIIN: 01-561-9620
In stock
NSN: 5331-01-561-9620
FSC Code: 5331
MPN: 014020030

5331-01-472-7752 (01-402-0220)

NIIN: 01-472-7752
In stock
NSN: 5331-01-472-7752
FSC Code: 5331
MPN: 014020220

5331-01-424-4278 (01-402-0450)

NIIN: 01-424-4278
In stock
NSN: 5331-01-424-4278
FSC Code: 5331
MPN: 014020450

5331-01-146-7310 (2-382N918-70)

NIIN: 01-146-7310
In stock
NSN: 5331-01-146-7310
FSC Code: 5331
MPN: 2382N91870

5331-01-346-3488 (01-402-0580)

NIIN: 01-346-3488
In stock
NSN: 5331-01-346-3488
FSC Code: 5331
MPN: 014020580

5331-14-402-3769 (01400B7800A20B7)

NIIN: 14-402-3769
In stock
NSN: 5331-14-402-3769
FSC Code: 5331
MPN: 01400B7800A20B7

5331-01-424-4280 (01-402-0590)

NIIN: 01-424-4280
In stock
NSN: 5331-01-424-4280
FSC Code: 5331
MPN: 014020590

5331-01-416-5528 (CE100E-C1-B2-26)

NIIN: 01-416-5528
In stock
NSN: 5331-01-416-5528
FSC Code: 5331
MPN: CE100EC1B226

5331-01-271-8403 (2-382L1170-70)

NIIN: 01-271-8403
In stock
NSN: 5331-01-271-8403
FSC Code: 5331
MPN: 2382L117070

5331-01-431-9887 (01-402-0621)

NIIN: 01-431-9887
In stock
NSN: 5331-01-431-9887
FSC Code: 5331
MPN: 014020621

5331-01-431-9859 (01-402-0611)

NIIN: 01-431-9859
In stock
NSN: 5331-01-431-9859
FSC Code: 5331
MPN: 014020611

5331-01-294-8439 (238290-906)

NIIN: 01-294-8439
In stock
NSN: 5331-01-294-8439
FSC Code: 5331
MPN: 238290906

5331-01-474-7911 (01-402-0560)

NIIN: 01-474-7911
In stock
NSN: 5331-01-474-7911
FSC Code: 5331
MPN: 014020560

5331-00-364-9862 (2-383)

NIIN: 00-364-9862
In stock
NSN: 5331-00-364-9862
FSC Code: 5331
MPN: 2383

5331-01-472-7763 (01-402-0601)

NIIN: 01-472-7763
In stock
NSN: 5331-01-472-7763
FSC Code: 5331
MPN: 014020601

5331-01-424-4279 (01-402-0470)

NIIN: 01-424-4279
In stock
NSN: 5331-01-424-4279
FSC Code: 5331
MPN: 014020470

5331-01-005-0529 (2-382V0747-75)

NIIN: 01-005-0529
In stock
NSN: 5331-01-005-0529
FSC Code: 5331
MPN: 2382V074775

5331-01-020-5268 (2-383S595-50)

NIIN: 01-020-5268
In stock
NSN: 5331-01-020-5268
FSC Code: 5331
MPN: 2383S59550

5331-01-005-0530 (2-383N674-70)

NIIN: 01-005-0530
In stock
NSN: 5331-01-005-0530
FSC Code: 5331
MPN: 2383N67470

5331-01-006-5030 (238414-000)

NIIN: 01-006-5030
In stock
NSN: 5331-01-006-5030
FSC Code: 5331
MPN: 238414000

5331-01-030-3366 (2-384C147-7)

NIIN: 01-030-3366
In stock
NSN: 5331-01-030-3366
FSC Code: 5331
MPN: 2384C1477

5331-00-952-7400 (2-38-47-071)

NIIN: 00-952-7400
In stock
NSN: 5331-00-952-7400
FSC Code: 5331
MPN: 23847071

5331-01-504-4347 (FIND NO.32 112551000FINDNO32)

NIIN: 01-504-4347
In stock
NSN: 5331-01-504-4347
FSC Code: 5331
MPN: FINDNO32112551000FINDNO32

5331-01-388-8543 (01-435-0061-5)

NIIN: 01-388-8543
In stock
NSN: 5331-01-388-8543
FSC Code: 5331
MPN: 0143500615

5331-01-549-2130 (0-1-4-2)

NIIN: 01-549-2130
In stock
NSN: 5331-01-549-2130
FSC Code: 5331
MPN: 0142

5331-01-388-8538 (01-435-0061-5)

NIIN: 01-388-8538
In stock
NSN: 5331-01-388-8538
FSC Code: 5331
MPN: 0143500615

5331-01-306-5941 (238-5007)

NIIN: 01-306-5941
In stock
NSN: 5331-01-306-5941
FSC Code: 5331
MPN: 2385007

5331-01-005-0532 (2-385)

NIIN: 01-005-0532
In stock
NSN: 5331-01-005-0532
FSC Code: 5331
MPN: 2385

5331-01-535-4823 (01-435-0138-5ITEM132)

NIIN: 01-535-4823
In stock
NSN: 5331-01-535-4823
FSC Code: 5331
MPN: 0143501385ITEM132

5331-00-322-4322 (238-5110)

NIIN: 00-322-4322
In stock
NSN: 5331-00-322-4322
FSC Code: 5331
MPN: 2385110

5331-01-535-5302 (01-435-0138-5ITEM133)

NIIN: 01-535-5302
In stock
NSN: 5331-01-535-5302
FSC Code: 5331
MPN: 0143501385ITEM133

5331-01-375-8811 (01-435-0125-5PC90)

NIIN: 01-375-8811
In stock
NSN: 5331-01-375-8811
FSC Code: 5331
MPN: 0143501255PC90

5331-01-005-0531 (2-384V0747-75)

NIIN: 01-005-0531
In stock
NSN: 5331-01-005-0531
FSC Code: 5331
MPN: 2384V074775

5331-01-388-8554 (01-435-0190-5)

NIIN: 01-388-8554
In stock
NSN: 5331-01-388-8554
FSC Code: 5331
MPN: 0143501905

5331-01-388-8506 (01-435-0190-5)

NIIN: 01-388-8506
In stock
NSN: 5331-01-388-8506
FSC Code: 5331
MPN: 0143501905

5331-01-314-6771 (238-5127)

NIIN: 01-314-6771
In stock
NSN: 5331-01-314-6771
FSC Code: 5331
MPN: 2385127

5331-01-415-1942 (01-435-0190-5)

NIIN: 01-415-1942
In stock
NSN: 5331-01-415-1942
FSC Code: 5331
MPN: 0143501905