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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.

5331-01-355-8632 (S9413-750)

NIIN: 01-355-8632
In stock
NSN: 5331-01-355-8632
FSC Code: 5331
MPN: S9413750

5331-01-465-4181 (S9427B125)

NIIN: 01-465-4181
In stock
NSN: 5331-01-465-4181
FSC Code: 5331
MPN: S9427B125

5331-01-447-8192 (S9414-1-023-3)

NIIN: 01-447-8192
In stock
NSN: 5331-01-447-8192
FSC Code: 5331
MPN: S941410233

5331-01-357-8293 (S9413-675)

NIIN: 01-357-8293
In stock
NSN: 5331-01-357-8293
FSC Code: 5331
MPN: S9413675

5331-01-447-8191 (S9414-3-023-3)

NIIN: 01-447-8191
In stock
NSN: 5331-01-447-8191
FSC Code: 5331
MPN: S941430233

5331-01-355-8631 (S9413-586)

NIIN: 01-355-8631
In stock
NSN: 5331-01-355-8631
FSC Code: 5331
MPN: S9413586

5331-01-352-2572 (S9413-598)

NIIN: 01-352-2572
In stock
NSN: 5331-01-352-2572
FSC Code: 5331
MPN: S9413598

5331-01-550-5622 (S9413-552)

NIIN: 01-550-5622
In stock
NSN: 5331-01-550-5622
FSC Code: 5331
MPN: S9413552

5331-01-532-7566 (S9413-244)

NIIN: 01-532-7566
In stock
NSN: 5331-01-532-7566
FSC Code: 5331
MPN: S9413244

5331-01-495-9072 (S9413-131)

NIIN: 01-495-9072
In stock
NSN: 5331-01-495-9072
FSC Code: 5331
MPN: S9413131

5331-01-452-5910 (S9413-130)

NIIN: 01-452-5910
In stock
NSN: 5331-01-452-5910
FSC Code: 5331
MPN: S9413130

5331-01-450-2249 (S9413-111)

NIIN: 01-450-2249
In stock
NSN: 5331-01-450-2249
FSC Code: 5331
MPN: S9413111

5331-01-539-4495 (S9413-037)

NIIN: 01-539-4495
In stock
NSN: 5331-01-539-4495
FSC Code: 5331
MPN: S9413037

5331-01-495-9080 (S9413-035)

NIIN: 01-495-9080
In stock
NSN: 5331-01-495-9080
FSC Code: 5331
MPN: S9413035

5331-01-360-2986 (S9412-201)

NIIN: 01-360-2986
In stock
NSN: 5331-01-360-2986
FSC Code: 5331
MPN: S9412201

5331-01-433-6859 (S9413-029)

NIIN: 01-433-6859
In stock
NSN: 5331-01-433-6859
FSC Code: 5331
MPN: S9413029

5331-01-537-5314 (S9413-030)

NIIN: 01-537-5314
In stock
NSN: 5331-01-537-5314
FSC Code: 5331
MPN: S9413030

5331-01-346-5623 (S9412-145)

NIIN: 01-346-5623
In stock
NSN: 5331-01-346-5623
FSC Code: 5331
MPN: S9412145

5331-01-350-3170 (S9412-508)

NIIN: 01-350-3170
In stock
NSN: 5331-01-350-3170
FSC Code: 5331
MPN: S9412508

5331-01-555-7053 (S909-36-12)

NIIN: 01-555-7053
In stock
NSN: 5331-01-555-7053
FSC Code: 5331
MPN: S9093612

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