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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.

5331-00-367-5659 (3P-0656)

NIIN: 00-367-5659
In stock
NSN: 5331-00-367-5659
FSC Code: 5331
MPN: 3P0656

5331-01-406-8232 (12A-212-0209CP)

NIIN: 01-406-8232
In stock
NSN: 5331-01-406-8232
FSC Code: 5331
MPN: 12A2120209CP

5331-01-207-0261 (3N8462)

NIIN: 01-207-0261
In stock
NSN: 5331-01-207-0261
FSC Code: 5331
MPN: 3N8462

5331-01-297-8854 (3N8201)

NIIN: 01-297-8854
In stock
NSN: 5331-01-297-8854
FSC Code: 5331
MPN: 3N8201

5331-01-293-1001 (3N4866)

NIIN: 01-293-1001
In stock
NSN: 5331-01-293-1001
FSC Code: 5331
MPN: 3N4866

5331-01-274-4327 (3N4987)

NIIN: 01-274-4327
In stock
NSN: 5331-01-274-4327
FSC Code: 5331
MPN: 3N4987

5331-00-593-3274 (3N361PC50)

NIIN: 00-593-3274
In stock
NSN: 5331-00-593-3274
FSC Code: 5331
MPN: 3N361PC50

5331-00-490-6463 (3MSS1FPREF8)

NIIN: 00-490-6463
In stock
NSN: 5331-00-490-6463
FSC Code: 5331
MPN: 3MSS1FPREF8

5331-01-467-0888 (INCO1C11-9738-3)

NIIN: 01-467-0888
In stock
NSN: 5331-01-467-0888
FSC Code: 5331
MPN: INCO1C1197383

5331-01-550-3404 (5331015503404)

NIIN: 01-550-3404
In stock
NSN: 5331-01-550-3404
FSC Code: 5331
MPN: 5331015503404

5331-01-467-8273 (12991297-2)

NIIN: 01-467-8273
In stock
NSN: 5331-01-467-8273
FSC Code: 5331
MPN: 129912972

5331-01-474-2045 (129-9124)

NIIN: 01-474-2045
In stock
NSN: 5331-01-474-2045
FSC Code: 5331
MPN: 1299124

5331-01-353-2602 (1298/A)

NIIN: 01-353-2602
In stock
NSN: 5331-01-353-2602
FSC Code: 5331
MPN: 1298A

5331-01-483-8233 (1298023-21)

NIIN: 01-483-8233
In stock
NSN: 5331-01-483-8233
FSC Code: 5331
MPN: 129802321

5331-01-467-6914 (OR89.99X2.00MM-80EP)

NIIN: 01-467-6914
In stock
NSN: 5331-01-467-6914
FSC Code: 5331
MPN: OR8999X200MM80EP

5331-01-467-6919 (OR125.47X2.00MM-80EP)

NIIN: 01-467-6919
In stock
NSN: 5331-01-467-6919
FSC Code: 5331
MPN: OR12547X200MM80EP

5331-00-446-1659 (3M1119)

NIIN: 00-446-1659
In stock
NSN: 5331-00-446-1659
FSC Code: 5331
MPN: 3M1119

5331-01-526-8793 (129-7321)

NIIN: 01-526-8793
In stock
NSN: 5331-01-526-8793
FSC Code: 5331
MPN: 1297321

5331-01-181-4952 (3L6768)

NIIN: 01-181-4952
In stock
NSN: 5331-01-181-4952
FSC Code: 5331
MPN: 3L6768

5331-01-241-2729 (3K9738)

NIIN: 01-241-2729
In stock
NSN: 5331-01-241-2729
FSC Code: 5331
MPN: 3K9738

5331-01-516-3182 (129-547)

NIIN: 01-516-3182
In stock
NSN: 5331-01-516-3182
FSC Code: 5331
MPN: 129547

5331-01-454-6400 (129470-01550)

NIIN: 01-454-6400
In stock
NSN: 5331-01-454-6400
FSC Code: 5331
MPN: 12947001550

5331-01-221-9644 (3J8607)

NIIN: 01-221-9644
In stock
NSN: 5331-01-221-9644
FSC Code: 5331
MPN: 3J8607

5331-00-029-0394 (3J8683)

NIIN: 00-029-0394
In stock
NSN: 5331-00-029-0394
FSC Code: 5331
MPN: 3J8683

5331-01-547-0466 (129395-42140)

NIIN: 01-547-0466
In stock
NSN: 5331-01-547-0466
FSC Code: 5331
MPN: 12939542140

5331-01-221-9643 (3J2271)

NIIN: 01-221-9643
In stock
NSN: 5331-01-221-9643
FSC Code: 5331
MPN: 3J2271

5331-00-149-9150 (3J13922)

NIIN: 00-149-9150
In stock
NSN: 5331-00-149-9150
FSC Code: 5331
MPN: 3J13922

5331-01-188-0861 (3J)

NIIN: 01-188-0861
In stock
NSN: 5331-01-188-0861
FSC Code: 5331
MPN: 3J

5331-01-313-5695 (3HX11-8K)

NIIN: 01-313-5695
In stock
NSN: 5331-01-313-5695
FSC Code: 5331
MPN: 3HX118K

5331-00-710-2143 (3H3385)

NIIN: 00-710-2143
In stock
NSN: 5331-00-710-2143
FSC Code: 5331
MPN: 3H3385

5331-01-371-5166 (5-950E515-80)

NIIN: 01-371-5166
In stock
NSN: 5331-01-371-5166
FSC Code: 5331
MPN: 5950E51580

5331-00-286-7290 (3H2726)

NIIN: 00-286-7290
In stock
NSN: 5331-00-286-7290
FSC Code: 5331
MPN: 3H2726

5331-00-663-5075 (3H2652)

NIIN: 00-663-5075
In stock
NSN: 5331-00-663-5075
FSC Code: 5331
MPN: 3H2652

5331-00-599-2266 (3H2388)

NIIN: 00-599-2266
In stock
NSN: 5331-00-599-2266
FSC Code: 5331
MPN: 3H2388

5331-00-599-2265 (3H2389)

NIIN: 00-599-2265
In stock
NSN: 5331-00-599-2265
FSC Code: 5331
MPN: 3H2389

5331-01-365-8149 (5-547E515-80)

NIIN: 01-365-8149
In stock
NSN: 5331-01-365-8149
FSC Code: 5331
MPN: 5547E51580

5331-01-359-8781 (5-571E515-80)

NIIN: 01-359-8781
In stock
NSN: 5331-01-359-8781
FSC Code: 5331
MPN: 5571E51580

5331-01-367-4665 (5-622E515-80)

NIIN: 01-367-4665
In stock
NSN: 5331-01-367-4665
FSC Code: 5331
MPN: 5622E51580

5331-01-475-5352 (12918003-3)

NIIN: 01-475-5352
In stock
NSN: 5331-01-475-5352
FSC Code: 5331
MPN: 129180033

5331-00-599-2267 (3H2387)

NIIN: 00-599-2267
In stock
NSN: 5331-00-599-2267
FSC Code: 5331
MPN: 3H2387

5331-01-360-1086 (12918003-1)

NIIN: 01-360-1086
In stock
NSN: 5331-01-360-1086
FSC Code: 5331
MPN: 129180031

5331-01-414-7622 (5-504E515-80)

NIIN: 01-414-7622
In stock
NSN: 5331-01-414-7622
FSC Code: 5331
MPN: 5504E51580

5331-01-359-8782 (12918003-2)

NIIN: 01-359-8782
In stock
NSN: 5331-01-359-8782
FSC Code: 5331
MPN: 129180032

5331-00-710-2146 (3H0976)

NIIN: 00-710-2146
In stock
NSN: 5331-00-710-2146
FSC Code: 5331
MPN: 3H0976

5331-00-593-1192 (3H0107)

NIIN: 00-593-1192
In stock
NSN: 5331-00-593-1192
FSC Code: 5331
MPN: 3H0107

5331-00-949-6232 (3H0976)

NIIN: 00-949-6232
In stock
NSN: 5331-00-949-6232
FSC Code: 5331
MPN: 3H0976

5331-01-284-7868 (3GLBF771-11-22)

NIIN: 01-284-7868
In stock
NSN: 5331-01-284-7868
FSC Code: 5331
MPN: 3GLBF7711122

5331-01-162-8402 (3G9200)

NIIN: 01-162-8402
In stock
NSN: 5331-01-162-8402
FSC Code: 5331
MPN: 3G9200