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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.

5331-01-737-8888 (VM835-75-2-008)

NIIN: 01-737-8888
In stock
NSN: 5331-01-737-8888
FSC Code: 5331
MPN: VM835752008

5331-01-737-6350 (99708402605)

NIIN: 01-737-6350
In stock
NSN: 5331-01-737-6350
FSC Code: 5331
MPN: 99708402605

5331-01-737-6314 (ISO3601-1-009A-5.28X1.78-N)

NIIN: 01-737-6314
In stock
NSN: 5331-01-737-6314
FSC Code: 5331
MPN: ISO36011009A528X178N

5331-01-738-0608 (GRP-96-766)

NIIN: 01-738-0608
In stock
NSN: 5331-01-738-0608
FSC Code: 5331
MPN: GRP96766

5331-01-737-9967 (7750041-113)

NIIN: 01-737-9967
In stock
NSN: 5331-01-737-9967
FSC Code: 5331
MPN: 7750041113

5331-01-737-9409 (020115V0884)

NIIN: 01-737-9409
In stock
NSN: 5331-01-737-9409
FSC Code: 5331
MPN: 020115V0884

5331-01-737-6834 (2-224E962-90)

NIIN: 01-737-6834
In stock
NSN: 5331-01-737-6834
FSC Code: 5331
MPN: 2224E96290

5331-01-737-6359 (ISO3601-1-129A-39.34X2.62-N)

NIIN: 01-737-6359
In stock
NSN: 5331-01-737-6359
FSC Code: 5331
MPN: ISO36011129A3934X262N

5331-01-737-6342 (ISO3601-1-014A-12.42X1.78-N)

NIIN: 01-737-6342
In stock
NSN: 5331-01-737-6342
FSC Code: 5331
MPN: ISO36011014A1242X178N

5331-01-737-5720 (R13803482)

NIIN: 01-737-5720
In stock
NSN: 5331-01-737-5720
FSC Code: 5331
MPN: R13803482

5331-01-737-5612 (3977779)

NIIN: 01-737-5612
In stock
NSN: 5331-01-737-5612
FSC Code: 5331
MPN: 3977779

5331-01-737-0217 (182504)

NIIN: 01-737-0217
In stock
NSN: 5331-01-737-0217
FSC Code: 5331
MPN: 182504

5331-01-737-0188 (4000-32)

NIIN: 01-737-0188
In stock
NSN: 5331-01-737-0188
FSC Code: 5331
MPN: 400032

5331-01-736-8033 (M67226B3)

NIIN: 01-736-8033
In stock
NSN: 5331-01-736-8033
FSC Code: 5331
MPN: M67226B3

5331-01-736-2851 (4150-4113)

NIIN: 01-736-2851
In stock
NSN: 5331-01-736-2851
FSC Code: 5331
MPN: 41504113

5331-01-738-1801 (NMM400172)

NIIN: 01-738-1801
In stock
NSN: 5331-01-738-1801
FSC Code: 5331
MPN: NMM400172

5331-01-738-1569 (E83905)

NIIN: 01-738-1569
In stock
NSN: 5331-01-738-1569
FSC Code: 5331
MPN: E83905

5331-01-736-4576 (231-27-1038)

NIIN: 01-736-4576
In stock
NSN: 5331-01-736-4576
FSC Code: 5331
MPN: 231271038

5331-01-736-4537 (231-27-1239)

NIIN: 01-736-4537
In stock
NSN: 5331-01-736-4537
FSC Code: 5331
MPN: 231271239

5331-01-737-9932 (M83461/2-913)

NIIN: 01-737-9932
In stock
NSN: 5331-01-737-9932
FSC Code: 5331
MPN: M834612913

5331-01-737-8253 (29558027)

NIIN: 01-737-8253
In stock
NSN: 5331-01-737-8253
FSC Code: 5331
MPN: 29558027

5331-01-737-6472 (810901-266)

NIIN: 01-737-6472
In stock
NSN: 5331-01-737-6472
FSC Code: 5331
MPN: 810901266

5331-01-737-5378 (26586)

NIIN: 01-737-5378
In stock
NSN: 5331-01-737-5378
FSC Code: 5331
MPN: 26586

5331-01-737-4382 (3103226)

NIIN: 01-737-4382
In stock
NSN: 5331-01-737-4382
FSC Code: 5331
MPN: 3103226

5331-01-737-3529 (520079)

NIIN: 01-737-3529
In stock
NSN: 5331-01-737-3529
FSC Code: 5331
MPN: 520079

5331-01-736-2701 (593-8834149-16)

NIIN: 01-736-2701
In stock
NSN: 5331-01-736-2701
FSC Code: 5331
MPN: 593883414916

5331-01-735-9243 (2-454/N90)

NIIN: 01-735-9243
In stock
NSN: 5331-01-735-9243
FSC Code: 5331
MPN: 2454N90

5331-01-737-9557 (9-90002-035)

NIIN: 01-737-9557
In stock
NSN: 5331-01-737-9557
FSC Code: 5331
MPN: 990002035

5331-01-737-6068 (3523275)

NIIN: 01-737-6068
In stock
NSN: 5331-01-737-6068
FSC Code: 5331
MPN: 3523275

5331-01-737-8254 (29567711)

NIIN: 01-737-8254
In stock
NSN: 5331-01-737-8254
FSC Code: 5331
MPN: 29567711

5331-01-737-5733 (HSN80108)

NIIN: 01-737-5733
In stock
NSN: 5331-01-737-5733
FSC Code: 5331
MPN: HSN80108

5331-01-737-5116 (P920-02202-000)

NIIN: 01-737-5116
In stock
NSN: 5331-01-737-5116
FSC Code: 5331
MPN: P92002202000

5331-01-737-2193 (8J-3752)

NIIN: 01-737-2193
In stock
NSN: 5331-01-737-2193
FSC Code: 5331
MPN: 8J3752

5331-01-736-5036 (9001181-0)

NIIN: 01-736-5036
In stock
NSN: 5331-01-736-5036
FSC Code: 5331
MPN: 90011810

5331-01-735-8120 (29088-01 PART 8)

NIIN: 01-735-8120
In stock
NSN: 5331-01-735-8120
FSC Code: 5331
MPN: 2908801PART8

5331-01-737-6334 (ISO3601-1-012A-9.25X1.78-N)

NIIN: 01-737-6334
In stock
NSN: 5331-01-737-6334
FSC Code: 5331
MPN: ISO36011012A925X178N

5331-01-737-6308 (ISO3601-1-006A-2.90X1.78-N)

NIIN: 01-737-6308
In stock
NSN: 5331-01-737-6308
FSC Code: 5331
MPN: ISO36011006A290X178N

5331-01-737-1550 (209207)

NIIN: 01-737-1550
In stock
NSN: 5331-01-737-1550
FSC Code: 5331
MPN: 209207

5331-01-736-1414 (593-8838082-15)

NIIN: 01-736-1414
In stock
NSN: 5331-01-736-1414
FSC Code: 5331
MPN: 593883808215

5331-01-735-8480 (B51002819)

NIIN: 01-735-8480
In stock
NSN: 5331-01-735-8480
FSC Code: 5331
MPN: B51002819

5331-01-737-0199 (4000-6)

NIIN: 01-737-0199
In stock
NSN: 5331-01-737-0199
FSC Code: 5331
MPN: 40006

5331-01-737-6322 (99708412350)

NIIN: 01-737-6322
In stock
NSN: 5331-01-737-6322
FSC Code: 5331
MPN: 99708412350

5331-01-737-5461 (10082499-SP)

NIIN: 01-737-5461
In stock
NSN: 5331-01-737-5461
FSC Code: 5331
MPN: 10082499SP

5331-01-737-0187 (4000-24)

NIIN: 01-737-0187
In stock
NSN: 5331-01-737-0187
FSC Code: 5331
MPN: 400024

5331-01-736-3864 (B51000563)

NIIN: 01-736-3864
In stock
NSN: 5331-01-736-3864
FSC Code: 5331
MPN: B51000563

5331-01-737-3784 (8598308 ITEM 6D8)

NIIN: 01-737-3784
In stock
NSN: 5331-01-737-3784
FSC Code: 5331
MPN: 8598308ITEM6D8

5331-01-737-3609 (520076)

NIIN: 01-737-3609
In stock
NSN: 5331-01-737-3609
FSC Code: 5331
MPN: 520076

5331-01-737-0203 (FF4000-4)

NIIN: 01-737-0203
In stock
NSN: 5331-01-737-0203
FSC Code: 5331
MPN: FF40004