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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.

5331-01-585-3552 (05-08-03-06)

NIIN: 01-585-3552
In stock
NSN: 5331-01-585-3552
FSC Code: 5331
MPN: 05080306

5331-01-586-3209 (B10825 REV C)

NIIN: 01-586-3209
In stock
NSN: 5331-01-586-3209
FSC Code: 5331
MPN: B10825REVC

5331-01-585-6572 (25-37310-00)

NIIN: 01-585-6572
In stock
NSN: 5331-01-585-6572
FSC Code: 5331
MPN: 253731000

5331-01-585-2527 (05-08-03-03)

NIIN: 01-585-2527
In stock
NSN: 5331-01-585-2527
FSC Code: 5331
MPN: 05080303

5331-01-585-9979 (14003708*00)

NIIN: 01-585-9979
In stock
NSN: 5331-01-585-9979
FSC Code: 5331
MPN: 1400370800

5331-01-585-9854 (S200-230)

NIIN: 01-585-9854
In stock
NSN: 5331-01-585-9854
FSC Code: 5331
MPN: S200230

5331-01-585-6285 (7250121 REV B ITEM NO 39)

NIIN: 01-585-6285
In stock
NSN: 5331-01-585-6285
FSC Code: 5331
MPN: 7250121REVBITEMNO39

5331-01-585-4033 (2-511-012-867)

NIIN: 01-585-4033
In stock
NSN: 5331-01-585-4033
FSC Code: 5331
MPN: 2511012867

5331-01-585-2981 (260381)

NIIN: 01-585-2981
In stock
NSN: 5331-01-585-2981
FSC Code: 5331
MPN: 260381

5331-01-585-2520 (0R5X1B70)

NIIN: 01-585-2520
In stock
NSN: 5331-01-585-2520
FSC Code: 5331
MPN: 0R5X1B70

5331-01-585-2097 (4420958)

NIIN: 01-585-2097
In stock
NSN: 5331-01-585-2097
FSC Code: 5331
MPN: 4420958

5331-01-586-0544 (1A1-4B-BM3)

NIIN: 01-586-0544
In stock
NSN: 5331-01-586-0544
FSC Code: 5331
MPN: 1A14BBM3

5331-01-585-8875 (23KP501)

NIIN: 01-585-8875
In stock
NSN: 5331-01-585-8875
FSC Code: 5331
MPN: 23KP501

5331-01-585-6214 (7250121-016)

NIIN: 01-585-6214
In stock
NSN: 5331-01-585-6214
FSC Code: 5331
MPN: 7250121016

5331-01-585-4129 (72986)

NIIN: 01-585-4129
In stock
NSN: 5331-01-585-4129
FSC Code: 5331
MPN: 72986

5331-01-585-2346 (4447067)

NIIN: 01-585-2346
In stock
NSN: 5331-01-585-2346
FSC Code: 5331
MPN: 4447067

5331-01-585-5595 (0000 239 9561)

NIIN: 01-585-5595
In stock
NSN: 5331-01-585-5595
FSC Code: 5331
MPN: 00002399561

5331-01-585-4512 (094-0071-01)

NIIN: 01-585-4512
In stock
NSN: 5331-01-585-4512
FSC Code: 5331
MPN: 094007101

5331-01-585-3528 (4421939)

NIIN: 01-585-3528
In stock
NSN: 5331-01-585-3528
FSC Code: 5331
MPN: 4421939

5331-01-585-3434 (3875913C1)

NIIN: 01-585-3434
In stock
NSN: 5331-01-585-3434
FSC Code: 5331
MPN: 3875913C1

5331-01-585-2877 (100-101-351)

NIIN: 01-585-2877
In stock
NSN: 5331-01-585-2877
FSC Code: 5331
MPN: 100101351

5331-01-585-1514 (15862W)

NIIN: 01-585-1514
In stock
NSN: 5331-01-585-1514
FSC Code: 5331
MPN: 15862W

5331-01-585-9671 (2863701)

NIIN: 01-585-9671
In stock
NSN: 5331-01-585-9671
FSC Code: 5331
MPN: 2863701

5331-01-585-2996 (251214)

NIIN: 01-585-2996
In stock
NSN: 5331-01-585-2996
FSC Code: 5331
MPN: 251214

5331-01-585-2706 (10017005 ITEM 2)

NIIN: 01-585-2706
In stock
NSN: 5331-01-585-2706
FSC Code: 5331
MPN: 10017005ITEM2

5331-01-585-2978 (260383)

NIIN: 01-585-2978
In stock
NSN: 5331-01-585-2978
FSC Code: 5331
MPN: 260383

5331-01-585-1405 (112517A1)

NIIN: 01-585-1405
In stock
NSN: 5331-01-585-1405
FSC Code: 5331
MPN: 112517A1

5331-01-585-1398 (238-8217)

NIIN: 01-585-1398
In stock
NSN: 5331-01-585-1398
FSC Code: 5331
MPN: 2388217

5331-01-585-0166 (90263W)

NIIN: 01-585-0166
In stock
NSN: 5331-01-585-0166
FSC Code: 5331
MPN: 90263W

5331-01-584-9897 (HC-2008-236)

NIIN: 01-584-9897
In stock
NSN: 5331-01-584-9897
FSC Code: 5331
MPN: HC2008236

5331-01-584-8699 (1843635SV)

NIIN: 01-584-8699
In stock
NSN: 5331-01-584-8699
FSC Code: 5331
MPN: 1843635SV

5331-01-585-2270 (N1470 3-910)

NIIN: 01-585-2270
In stock
NSN: 5331-01-585-2270
FSC Code: 5331
MPN: N14703910

5331-01-585-2136 (AT264418)

NIIN: 01-585-2136
In stock
NSN: 5331-01-585-2136
FSC Code: 5331
MPN: AT264418

5331-01-585-1523 (15892W)

NIIN: 01-585-1523
In stock
NSN: 5331-01-585-1523
FSC Code: 5331
MPN: 15892W

5331-01-585-4004 (0000 234 9561)

NIIN: 01-585-4004
In stock
NSN: 5331-01-585-4004
FSC Code: 5331
MPN: 00002349561

5331-01-585-3836 (251215)

NIIN: 01-585-3836
In stock
NSN: 5331-01-585-3836
FSC Code: 5331
MPN: 251215

5331-01-585-3755 (012-2201-237)

NIIN: 01-585-3755
In stock
NSN: 5331-01-585-3755
FSC Code: 5331
MPN: 0122201237

5331-01-585-2327 (4396775)

NIIN: 01-585-2327
In stock
NSN: 5331-01-585-2327
FSC Code: 5331
MPN: 4396775

5331-01-585-1532 (16783W)

NIIN: 01-585-1532
In stock
NSN: 5331-01-585-1532
FSC Code: 5331
MPN: 16783W

5331-01-584-9949 (MS25988/1-028)

NIIN: 01-584-9949
In stock
NSN: 5331-01-584-9949
FSC Code: 5331
MPN: MS259881028

5331-01-584-9511 (05-19-01)

NIIN: 01-584-9511
In stock
NSN: 5331-01-584-9511
FSC Code: 5331
MPN: 051901

5331-01-584-9258 (S9413-576)

NIIN: 01-584-9258
In stock
NSN: 5331-01-584-9258
FSC Code: 5331
MPN: S9413576

5331-01-584-8694 (1843634SV)

NIIN: 01-584-8694
In stock
NSN: 5331-01-584-8694
FSC Code: 5331
MPN: 1843634SV

5331-01-585-3027 (10302)

NIIN: 01-585-3027
In stock
NSN: 5331-01-585-3027
FSC Code: 5331
MPN: 10302

5331-01-585-0684 (107618947C)

NIIN: 01-585-0684
In stock
NSN: 5331-01-585-0684
FSC Code: 5331
MPN: 107618947C

5331-01-585-0160 (79980W)

NIIN: 01-585-0160
In stock
NSN: 5331-01-585-0160
FSC Code: 5331
MPN: 79980W

5331-01-585-0150 (212380)

NIIN: 01-585-0150
In stock
NSN: 5331-01-585-0150
FSC Code: 5331
MPN: 212380

5331-01-584-9129 (25-34563-00)

NIIN: 01-584-9129
In stock
NSN: 5331-01-584-9129
FSC Code: 5331
MPN: 253456300