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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.

5331-01-556-4284 (S909-36-24)

NIIN: 01-556-4284
In stock
NSN: 5331-01-556-4284
FSC Code: 5331
MPN: S9093624

5331-01-407-0506 (S9121H52)

NIIN: 01-407-0506
In stock
NSN: 5331-01-407-0506
FSC Code: 5331
MPN: S9121H52

5331-01-556-4291 (S909-36-6)

NIIN: 01-556-4291
In stock
NSN: 5331-01-556-4291
FSC Code: 5331
MPN: S909366

5331-01-556-4286 (S909-36-8)

NIIN: 01-556-4286
In stock
NSN: 5331-01-556-4286
FSC Code: 5331
MPN: S909368

5331-01-483-9361 (S9026N920)

NIIN: 01-483-9361
In stock
NSN: 5331-01-483-9361
FSC Code: 5331
MPN: S9026N920

5331-01-557-4404 (S909-36-25)

NIIN: 01-557-4404
In stock
NSN: 5331-01-557-4404
FSC Code: 5331
MPN: S9093625

5331-01-514-5002 (S9026HSN138)

NIIN: 01-514-5002
In stock
NSN: 5331-01-514-5002
FSC Code: 5331
MPN: S9026HSN138

5331-01-407-2338 (S9028A912)

NIIN: 01-407-2338
In stock
NSN: 5331-01-407-2338
FSC Code: 5331
MPN: S9028A912

5331-01-483-9336 (S9026N047)

NIIN: 01-483-9336
In stock
NSN: 5331-01-483-9336
FSC Code: 5331
MPN: S9026N047

5331-01-483-9344 (S9026N022)

NIIN: 01-483-9344
In stock
NSN: 5331-01-483-9344
FSC Code: 5331
MPN: S9026N022

5331-01-483-9351 (S9026N906)

NIIN: 01-483-9351
In stock
NSN: 5331-01-483-9351
FSC Code: 5331
MPN: S9026N906

5331-01-483-9347 (S9026N042)

NIIN: 01-483-9347
In stock
NSN: 5331-01-483-9347
FSC Code: 5331
MPN: S9026N042

5331-01-483-9349 (S9026N171)

NIIN: 01-483-9349
In stock
NSN: 5331-01-483-9349
FSC Code: 5331
MPN: S9026N171

5331-01-483-9350 (S9026N904)

NIIN: 01-483-9350
In stock
NSN: 5331-01-483-9350
FSC Code: 5331
MPN: S9026N904

5331-01-516-5252 (S9026N902)

NIIN: 01-516-5252
In stock
NSN: 5331-01-516-5252
FSC Code: 5331
MPN: S9026N902

5331-01-483-9352 (S9026N916)

NIIN: 01-483-9352
In stock
NSN: 5331-01-483-9352
FSC Code: 5331
MPN: S9026N916

5331-01-483-9338 (S9026N036)

NIIN: 01-483-9338
In stock
NSN: 5331-01-483-9338
FSC Code: 5331
MPN: S9026N036

5331-01-407-2337 (S9028A905)

NIIN: 01-407-2337
In stock
NSN: 5331-01-407-2337
FSC Code: 5331
MPN: S9028A905

5331-01-483-9345 (S9026N135)

NIIN: 01-483-9345
In stock
NSN: 5331-01-483-9345
FSC Code: 5331
MPN: S9026N135

5331-01-516-5251 (S9026N037)

NIIN: 01-516-5251
In stock
NSN: 5331-01-516-5251
FSC Code: 5331
MPN: S9026N037

5331-01-531-6196 (S9026J234)

NIIN: 01-531-6196
In stock
NSN: 5331-01-531-6196
FSC Code: 5331
MPN: S9026J234

5331-01-514-5022 (S9026HSN906)

NIIN: 01-514-5022
In stock
NSN: 5331-01-514-5022
FSC Code: 5331
MPN: S9026HSN906

5331-01-483-9343 (S9026N014)

NIIN: 01-483-9343
In stock
NSN: 5331-01-483-9343
FSC Code: 5331
MPN: S9026N014

5331-01-483-9342 (S9026N010)

NIIN: 01-483-9342
In stock
NSN: 5331-01-483-9342
FSC Code: 5331
MPN: S9026N010

5331-01-483-9339 (S9026N038)

NIIN: 01-483-9339
In stock
NSN: 5331-01-483-9339
FSC Code: 5331
MPN: S9026N038

5331-01-514-5013 (S9026HSN904)

NIIN: 01-514-5013
In stock
NSN: 5331-01-514-5013
FSC Code: 5331
MPN: S9026HSN904

5331-01-514-4998 (S9026HSN123)

NIIN: 01-514-4998
In stock
NSN: 5331-01-514-4998
FSC Code: 5331
MPN: S9026HSN123

5331-01-514-5008 (S9026HSN147)

NIIN: 01-514-5008
In stock
NSN: 5331-01-514-5008
FSC Code: 5331
MPN: S9026HSN147

5331-01-483-9337 (S9026N016)

NIIN: 01-483-9337
In stock
NSN: 5331-01-483-9337
FSC Code: 5331
MPN: S9026N016

5331-01-514-6132 (S9026HSN012)

NIIN: 01-514-6132
In stock
NSN: 5331-01-514-6132
FSC Code: 5331
MPN: S9026HSN012

5331-01-514-4988 (S9026HSN030)

NIIN: 01-514-4988
In stock
NSN: 5331-01-514-4988
FSC Code: 5331
MPN: S9026HSN030

5331-01-514-4997 (S9026HSN121)

NIIN: 01-514-4997
In stock
NSN: 5331-01-514-4997
FSC Code: 5331
MPN: S9026HSN121

5331-01-564-8845 (S9026H228)

NIIN: 01-564-8845
In stock
NSN: 5331-01-564-8845
FSC Code: 5331
MPN: S9026H228

5331-01-505-9434 (S9026G224)

NIIN: 01-505-9434
In stock
NSN: 5331-01-505-9434
FSC Code: 5331
MPN: S9026G224

5331-01-514-6135 (S9026HSN018)

NIIN: 01-514-6135
In stock
NSN: 5331-01-514-6135
FSC Code: 5331
MPN: S9026HSN018

5331-01-514-6138 (S9026HSN022)

NIIN: 01-514-6138
In stock
NSN: 5331-01-514-6138
FSC Code: 5331
MPN: S9026HSN022

5331-01-514-6139 (S9026HSN025)

NIIN: 01-514-6139
In stock
NSN: 5331-01-514-6139
FSC Code: 5331
MPN: S9026HSN025

5331-01-407-2335 (S9026A227)

NIIN: 01-407-2335
In stock
NSN: 5331-01-407-2335
FSC Code: 5331
MPN: S9026A227

5331-01-407-2339 (S9026A256)

NIIN: 01-407-2339
In stock
NSN: 5331-01-407-2339
FSC Code: 5331
MPN: S9026A256

5331-01-407-5385 (S9026A228)

NIIN: 01-407-5385
In stock
NSN: 5331-01-407-5385
FSC Code: 5331
MPN: S9026A228

5331-01-407-2334 (S9026A011)

NIIN: 01-407-2334
In stock
NSN: 5331-01-407-2334
FSC Code: 5331
MPN: S9026A011

5331-01-564-8846 (S9026A226)

NIIN: 01-564-8846
In stock
NSN: 5331-01-564-8846
FSC Code: 5331
MPN: S9026A226

5331-01-349-4214 (S8990-619)

NIIN: 01-349-4214
In stock
NSN: 5331-01-349-4214
FSC Code: 5331
MPN: S8990619

5331-01-518-9439 (S8990-163)

NIIN: 01-518-9439
In stock
NSN: 5331-01-518-9439
FSC Code: 5331
MPN: S8990163

5331-01-457-5286 (S8990-517)

NIIN: 01-457-5286
In stock
NSN: 5331-01-457-5286
FSC Code: 5331
MPN: S8990517

5331-01-529-1488 (S8990-749)

NIIN: 01-529-1488
In stock
NSN: 5331-01-529-1488
FSC Code: 5331
MPN: S8990749

5331-01-349-4215 (S8990-614)

NIIN: 01-349-4215
In stock
NSN: 5331-01-349-4215
FSC Code: 5331
MPN: S8990614

5331-01-543-1069 (S8990-134)

NIIN: 01-543-1069
In stock
NSN: 5331-01-543-1069
FSC Code: 5331
MPN: S8990134