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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.

5331-01-417-4000 (MIL-R-83248/2)

NIIN: 01-417-4000
In stock
NSN: 5331-01-417-4000
FSC Code: 5331
MPN: MILR832482

5331-01-408-4133 (AS3578-387)

NIIN: 01-408-4133
In stock
NSN: 5331-01-408-4133
FSC Code: 5331
MPN: AS3578387

5331-01-452-2977 (AS3578-046)

NIIN: 01-452-2977
In stock
NSN: 5331-01-452-2977
FSC Code: 5331
MPN: AS3578046

5331-01-478-7207 (M83248/2-211CP)

NIIN: 01-478-7207
In stock
NSN: 5331-01-478-7207
FSC Code: 5331
MPN: M832482211CP

5331-01-415-0651 (AS3578-475)

NIIN: 01-415-0651
In stock
NSN: 5331-01-415-0651
FSC Code: 5331
MPN: AS3578475

5331-01-405-9920 (AS3578-145)

NIIN: 01-405-9920
In stock
NSN: 5331-01-405-9920
FSC Code: 5331
MPN: AS3578145

5331-01-004-5043 (P153688-8)

NIIN: 01-004-5043
In stock
NSN: 5331-01-004-5043
FSC Code: 5331
MPN: P1536888

5331-01-515-9743 (AS3551-172)

NIIN: 01-515-9743
In stock
NSN: 5331-01-515-9743
FSC Code: 5331
MPN: AS3551172

5331-01-452-2547 (AS3578-329)

NIIN: 01-452-2547
In stock
NSN: 5331-01-452-2547
FSC Code: 5331
MPN: AS3578329

5331-01-465-0909 (AS3578-134)

NIIN: 01-465-0909
In stock
NSN: 5331-01-465-0909
FSC Code: 5331
MPN: AS3578134

5331-01-529-3875 (AS3578-116)

NIIN: 01-529-3875
In stock
NSN: 5331-01-529-3875
FSC Code: 5331
MPN: AS3578116

5331-01-388-3987 (MS9021D-020)

NIIN: 01-388-3987
In stock
NSN: 5331-01-388-3987
FSC Code: 5331
MPN: MS9021D020

5331-01-529-3878 (H-5478753PC27)

NIIN: 01-529-3878
In stock
NSN: 5331-01-529-3878
FSC Code: 5331
MPN: H5478753PC27

5331-01-004-5044 (P153688-21)

NIIN: 01-004-5044
In stock
NSN: 5331-01-004-5044
FSC Code: 5331
MPN: P15368821

5331-01-481-2640 (AS3578-110)

NIIN: 01-481-2640
In stock
NSN: 5331-01-481-2640
FSC Code: 5331
MPN: AS3578110

5331-01-529-4873 (AS3578-039)

NIIN: 01-529-4873
In stock
NSN: 5331-01-529-4873
FSC Code: 5331
MPN: AS3578039

5331-01-504-8202 (AS3569-346)

NIIN: 01-504-8202
In stock
NSN: 5331-01-504-8202
FSC Code: 5331
MPN: AS3569346

5331-01-010-9991 (P153687PC9)

NIIN: 01-010-9991
In stock
NSN: 5331-01-010-9991
FSC Code: 5331
MPN: P153687PC9

5331-01-010-9990 (P153687PC15)

NIIN: 01-010-9990
In stock
NSN: 5331-01-010-9990
FSC Code: 5331
MPN: P153687PC15

5331-01-010-9992 (P153686PC10)

NIIN: 01-010-9992
In stock
NSN: 5331-01-010-9992
FSC Code: 5331
MPN: P153686PC10

5331-01-398-0682 (AS3551-271)

NIIN: 01-398-0682
In stock
NSN: 5331-01-398-0682
FSC Code: 5331
MPN: AS3551271

5331-01-493-3488 (AS3551-277)

NIIN: 01-493-3488
In stock
NSN: 5331-01-493-3488
FSC Code: 5331
MPN: AS3551277

5331-01-483-2241 (AS3569-431)

NIIN: 01-483-2241
In stock
NSN: 5331-01-483-2241
FSC Code: 5331
MPN: AS3569431

5331-01-516-0149 (AS3551-135)

NIIN: 01-516-0149
In stock
NSN: 5331-01-516-0149
FSC Code: 5331
MPN: AS3551135

5331-01-523-1791 (AS3551-263)

NIIN: 01-523-1791
In stock
NSN: 5331-01-523-1791
FSC Code: 5331
MPN: AS3551263

5331-01-010-9993 (P153686PC11)

NIIN: 01-010-9993
In stock
NSN: 5331-01-010-9993
FSC Code: 5331
MPN: P153686PC11

5331-01-550-2314 (AS3551-175)

NIIN: 01-550-2314
In stock
NSN: 5331-01-550-2314
FSC Code: 5331
MPN: AS3551175

5331-01-374-2326 (AS3551-109)

NIIN: 01-374-2326
In stock
NSN: 5331-01-374-2326
FSC Code: 5331
MPN: AS3551109

5331-01-010-9994 (P153686PC15)

NIIN: 01-010-9994
In stock
NSN: 5331-01-010-9994
FSC Code: 5331
MPN: P153686PC15

5331-01-504-1025 (AS3551-153)

NIIN: 01-504-1025
In stock
NSN: 5331-01-504-1025
FSC Code: 5331
MPN: AS3551153

5331-01-177-8158 (P-15)

NIIN: 01-177-8158
In stock
NSN: 5331-01-177-8158
FSC Code: 5331
MPN: P15

5331-01-399-3798 (SAE-AMS7276)

NIIN: 01-399-3798
In stock
NSN: 5331-01-399-3798
FSC Code: 5331
MPN: SAEAMS7276

5331-01-467-5453 (AS3209-238)

NIIN: 01-467-5453
In stock
NSN: 5331-01-467-5453
FSC Code: 5331
MPN: AS3209238

5331-01-365-8126 (AS43013-357)

NIIN: 01-365-8126
In stock
NSN: 5331-01-365-8126
FSC Code: 5331
MPN: AS43013357

5331-01-418-2320 (SAE-AMS7276)

NIIN: 01-418-2320
In stock
NSN: 5331-01-418-2320
FSC Code: 5331
MPN: SAEAMS7276

5331-01-388-4530 (AS3209-234)

NIIN: 01-388-4530
In stock
NSN: 5331-01-388-4530
FSC Code: 5331
MPN: AS3209234

5331-01-418-2326 (AS3209-279)

NIIN: 01-418-2326
In stock
NSN: 5331-01-418-2326
FSC Code: 5331
MPN: AS3209279

5331-01-285-3177 (P1433)

NIIN: 01-285-3177
In stock
NSN: 5331-01-285-3177
FSC Code: 5331
MPN: P1433

5331-01-497-4146 (AS3209-211)

NIIN: 01-497-4146
In stock
NSN: 5331-01-497-4146
FSC Code: 5331
MPN: AS3209211

5331-01-411-9551 (AS3209-123)

NIIN: 01-411-9551
In stock
NSN: 5331-01-411-9551
FSC Code: 5331
MPN: AS3209123

5331-01-464-8539 (AS3209-218)

NIIN: 01-464-8539
In stock
NSN: 5331-01-464-8539
FSC Code: 5331
MPN: AS3209218

5331-01-463-8824 (SPECIFIC V-22 AE1107C ENGINE NSNSPECIFICV22AE1107CENGINE)

NIIN: 01-463-8824
In stock
NSN: 5331-01-463-8824
FSC Code: 5331
MPN: SPECIFICV22AE1107CENGINENSNSPECIFICV22AE1107CENGINE

5331-01-418-2323 (AS3209-160)

NIIN: 01-418-2323
In stock
NSN: 5331-01-418-2323
FSC Code: 5331
MPN: AS3209160

5331-01-497-4147 (AS3209-218)

NIIN: 01-497-4147
In stock
NSN: 5331-01-497-4147
FSC Code: 5331
MPN: AS3209218

5331-01-418-2322 (AS3209-241)

NIIN: 01-418-2322
In stock
NSN: 5331-01-418-2322
FSC Code: 5331
MPN: AS3209241

5331-01-446-1961 (SAE-AMS7276)

NIIN: 01-446-1961
In stock
NSN: 5331-01-446-1961
FSC Code: 5331
MPN: SAEAMS7276

5331-01-360-2845 (AS43013-276)

NIIN: 01-360-2845
In stock
NSN: 5331-01-360-2845
FSC Code: 5331
MPN: AS43013276

5331-01-467-6523 (SPECIFIC V-22 AE1107C ENGINE NSNSPECIFICV22AE1107CENGINE)

NIIN: 01-467-6523
In stock
NSN: 5331-01-467-6523
FSC Code: 5331
MPN: SPECIFICV22AE1107CENGINENSNSPECIFICV22AE1107CENGINE