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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.

5331-01-156-5457 (10186993)

NIIN: 01-156-5457
In stock
NSN: 5331-01-156-5457
FSC Code: 5331
MPN: 10186993

5331-00-826-8959 (10187361)

NIIN: 00-826-8959
In stock
NSN: 5331-00-826-8959
FSC Code: 5331
MPN: 10187361

5331-01-156-3765 (10186992)

NIIN: 01-156-3765
In stock
NSN: 5331-01-156-3765
FSC Code: 5331
MPN: 10186992

5331-01-203-0056 (10186570)

NIIN: 01-203-0056
In stock
NSN: 5331-01-203-0056
FSC Code: 5331
MPN: 10186570

5331-00-003-3143 (10189332)

NIIN: 00-003-3143
In stock
NSN: 5331-00-003-3143
FSC Code: 5331
MPN: 10189332

5331-01-061-3000 (10192558)

NIIN: 01-061-3000
In stock
NSN: 5331-01-061-3000
FSC Code: 5331
MPN: 10192558

5331-00-180-9567 (10193364)

NIIN: 00-180-9567
In stock
NSN: 5331-00-180-9567
FSC Code: 5331
MPN: 10193364

5331-00-995-5382 (10195476)

NIIN: 00-995-5382
In stock
NSN: 5331-00-995-5382
FSC Code: 5331
MPN: 10195476

5331-00-068-2500 (10195489)

NIIN: 00-068-2500
In stock
NSN: 5331-00-068-2500
FSC Code: 5331
MPN: 10195489

5331-00-263-8037 (10195512)

NIIN: 00-263-8037
In stock
NSN: 5331-00-263-8037
FSC Code: 5331
MPN: 10195512

5331-00-619-9070 (10196779)

NIIN: 00-619-9070
In stock
NSN: 5331-00-619-9070
FSC Code: 5331
MPN: 10196779

5331-01-057-3133 (10197438)

NIIN: 01-057-3133
In stock
NSN: 5331-01-057-3133
FSC Code: 5331
MPN: 10197438

5331-00-248-3849 (10198085)

NIIN: 00-248-3849
In stock
NSN: 5331-00-248-3849
FSC Code: 5331
MPN: 10198085

5331-00-166-8395 (10200133)

NIIN: 00-166-8395
In stock
NSN: 5331-00-166-8395
FSC Code: 5331
MPN: 10200133

5331-01-185-2570 (10202796)

NIIN: 01-185-2570
In stock
NSN: 5331-01-185-2570
FSC Code: 5331
MPN: 10202796

5331-00-995-5381 (10198719)

NIIN: 00-995-5381
In stock
NSN: 5331-00-995-5381
FSC Code: 5331
MPN: 10198719

5331-00-576-5446 (10203498)

NIIN: 00-576-5446
In stock
NSN: 5331-00-576-5446
FSC Code: 5331
MPN: 10203498

5331-01-014-6170 (10204982)

NIIN: 01-014-6170
In stock
NSN: 5331-01-014-6170
FSC Code: 5331
MPN: 10204982

5331-01-201-8685 (10206309)

NIIN: 01-201-8685
In stock
NSN: 5331-01-201-8685
FSC Code: 5331
MPN: 10206309

5331-01-075-2817 (10234807)

NIIN: 01-075-2817
In stock
NSN: 5331-01-075-2817
FSC Code: 5331
MPN: 10234807

5331-01-304-0285 (10271176)

NIIN: 01-304-0285
In stock
NSN: 5331-01-304-0285
FSC Code: 5331
MPN: 10271176

5331-00-339-6224 (10300089)

NIIN: 00-339-6224
In stock
NSN: 5331-00-339-6224
FSC Code: 5331
MPN: 10300089

5331-01-335-0042 (10300087)

NIIN: 01-335-0042
In stock
NSN: 5331-01-335-0042
FSC Code: 5331
MPN: 10300087

5331-00-079-4578 (10301730)

NIIN: 00-079-4578
In stock
NSN: 5331-00-079-4578
FSC Code: 5331
MPN: 10301730

5331-00-531-4588 (10314203)

NIIN: 00-531-4588
In stock
NSN: 5331-00-531-4588
FSC Code: 5331
MPN: 10314203

5331-01-053-0218 (10314126)

NIIN: 01-053-0218
In stock
NSN: 5331-01-053-0218
FSC Code: 5331
MPN: 10314126

5331-01-053-0219 (10314128)

NIIN: 01-053-0219
In stock
NSN: 5331-01-053-0219
FSC Code: 5331
MPN: 10314128

5331-00-865-0404 (10322237)

NIIN: 00-865-0404
In stock
NSN: 5331-00-865-0404
FSC Code: 5331
MPN: 10322237

5331-00-914-5846 (10324710)

NIIN: 00-914-5846
In stock
NSN: 5331-00-914-5846
FSC Code: 5331
MPN: 10324710

5331-00-476-7406 (10328292)

NIIN: 00-476-7406
In stock
NSN: 5331-00-476-7406
FSC Code: 5331
MPN: 10328292

5331-01-304-5148 (10328367)

NIIN: 01-304-5148
In stock
NSN: 5331-01-304-5148
FSC Code: 5331
MPN: 10328367

5331-01-226-8748 (10328397)

NIIN: 01-226-8748
In stock
NSN: 5331-01-226-8748
FSC Code: 5331
MPN: 10328397

5331-01-086-6410 (10327177)

NIIN: 01-086-6410
In stock
NSN: 5331-01-086-6410
FSC Code: 5331
MPN: 10327177

5331-01-183-3156 (10332336)

NIIN: 01-183-3156
In stock
NSN: 5331-01-183-3156
FSC Code: 5331
MPN: 10332336

5331-01-185-2591 (10328563)

NIIN: 01-185-2591
In stock
NSN: 5331-01-185-2591
FSC Code: 5331
MPN: 10328563

5331-01-183-3157 (10332401)

NIIN: 01-183-3157
In stock
NSN: 5331-01-183-3157
FSC Code: 5331
MPN: 10332401

5331-01-183-3155 (10332380)

NIIN: 01-183-3155
In stock
NSN: 5331-01-183-3155
FSC Code: 5331
MPN: 10332380

5331-00-167-5171 (10333733)

NIIN: 00-167-5171
In stock
NSN: 5331-00-167-5171
FSC Code: 5331
MPN: 10333733

5331-01-310-9300 (10333885)

NIIN: 01-310-9300
In stock
NSN: 5331-01-310-9300
FSC Code: 5331
MPN: 10333885

5331-01-289-6575 (10335245)

NIIN: 01-289-6575
In stock
NSN: 5331-01-289-6575
FSC Code: 5331
MPN: 10335245

5331-00-103-1579 (10338601)

NIIN: 00-103-1579
In stock
NSN: 5331-00-103-1579
FSC Code: 5331
MPN: 10338601

5331-00-365-6349 (10339574)

NIIN: 00-365-6349
In stock
NSN: 5331-00-365-6349
FSC Code: 5331
MPN: 10339574

5331-01-262-2372 (10339439)

NIIN: 01-262-2372
In stock
NSN: 5331-01-262-2372
FSC Code: 5331
MPN: 10339439

5331-00-481-9987 (10342235)

NIIN: 00-481-9987
In stock
NSN: 5331-00-481-9987
FSC Code: 5331
MPN: 10342235

5331-00-585-8249 (10342557)

NIIN: 00-585-8249
In stock
NSN: 5331-00-585-8249
FSC Code: 5331
MPN: 10342557

5331-01-053-0905 (10341538)

NIIN: 01-053-0905
In stock
NSN: 5331-01-053-0905
FSC Code: 5331
MPN: 10341538

5331-01-201-3616 (10345109)

NIIN: 01-201-3616
In stock
NSN: 5331-01-201-3616
FSC Code: 5331
MPN: 10345109

5331-01-010-2419 (10343089)

NIIN: 01-010-2419
In stock
NSN: 5331-01-010-2419
FSC Code: 5331
MPN: 10343089