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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.

5331-01-570-3074 (T204188)

NIIN: 01-570-3074
In stock
NSN: 5331-01-570-3074
FSC Code: 5331
MPN: T204188

5331-01-570-5511 (T200765)

NIIN: 01-570-5511
In stock
NSN: 5331-01-570-5511
FSC Code: 5331
MPN: T200765

5331-01-571-8499 (T19687)

NIIN: 01-571-8499
In stock
NSN: 5331-01-571-8499
FSC Code: 5331
MPN: T19687

5331-01-567-6344 (T187815)

NIIN: 01-567-6344
In stock
NSN: 5331-01-567-6344
FSC Code: 5331
MPN: T187815

5331-01-570-3065 (T191346)

NIIN: 01-570-3065
In stock
NSN: 5331-01-570-3065
FSC Code: 5331
MPN: T191346

5331-01-570-2851 (T175823)

NIIN: 01-570-2851
In stock
NSN: 5331-01-570-2851
FSC Code: 5331
MPN: T175823

5331-01-567-8342 (T175864)

NIIN: 01-567-8342
In stock
NSN: 5331-01-567-8342
FSC Code: 5331
MPN: T175864

5331-01-567-6353 (T174529)

NIIN: 01-567-6353
In stock
NSN: 5331-01-567-6353
FSC Code: 5331
MPN: T174529

5331-01-567-6294 (T174237)

NIIN: 01-567-6294
In stock
NSN: 5331-01-567-6294
FSC Code: 5331
MPN: T174237

5331-01-567-6355 (T176796)

NIIN: 01-567-6355
In stock
NSN: 5331-01-567-6355
FSC Code: 5331
MPN: T176796

5331-01-567-9383 (T174239)

NIIN: 01-567-9383
In stock
NSN: 5331-01-567-9383
FSC Code: 5331
MPN: T174239

5331-01-568-0494 (T174234)

NIIN: 01-568-0494
In stock
NSN: 5331-01-568-0494
FSC Code: 5331
MPN: T174234

5331-01-567-9853 (T174236)

NIIN: 01-567-9853
In stock
NSN: 5331-01-567-9853
FSC Code: 5331
MPN: T174236

5331-01-567-9594 (T174413)

NIIN: 01-567-9594
In stock
NSN: 5331-01-567-9594
FSC Code: 5331
MPN: T174413

5331-01-567-9438 (T174240)

NIIN: 01-567-9438
In stock
NSN: 5331-01-567-9438
FSC Code: 5331
MPN: T174240

5331-01-567-7935 (T169116)

NIIN: 01-567-7935
In stock
NSN: 5331-01-567-7935
FSC Code: 5331
MPN: T169116

5331-01-567-9382 (T173960)

NIIN: 01-567-9382
In stock
NSN: 5331-01-567-9382
FSC Code: 5331
MPN: T173960

5331-01-567-9329 (T173958)

NIIN: 01-567-9329
In stock
NSN: 5331-01-567-9329
FSC Code: 5331
MPN: T173958

5331-01-567-5133 (T174107)

NIIN: 01-567-5133
In stock
NSN: 5331-01-567-5133
FSC Code: 5331
MPN: T174107

5331-01-567-8979 (T170196)

NIIN: 01-567-8979
In stock
NSN: 5331-01-567-8979
FSC Code: 5331
MPN: T170196

5331-01-570-3055 (T164365)

NIIN: 01-570-3055
In stock
NSN: 5331-01-570-3055
FSC Code: 5331
MPN: T164365

5331-01-570-2850 (T164362)

NIIN: 01-570-2850
In stock
NSN: 5331-01-570-2850
FSC Code: 5331
MPN: T164362

5331-01-540-7194 (T166933)

NIIN: 01-540-7194
In stock
NSN: 5331-01-540-7194
FSC Code: 5331
MPN: T166933

5331-01-570-3105 (T165492)

NIIN: 01-570-3105
In stock
NSN: 5331-01-570-3105
FSC Code: 5331
MPN: T165492

5331-01-570-3057 (T165535)

NIIN: 01-570-3057
In stock
NSN: 5331-01-570-3057
FSC Code: 5331
MPN: T165535

5331-01-533-5703 (T164909)

NIIN: 01-533-5703
In stock
NSN: 5331-01-533-5703
FSC Code: 5331
MPN: T164909

5331-01-428-9227 (T16318)

NIIN: 01-428-9227
In stock
NSN: 5331-01-428-9227
FSC Code: 5331
MPN: T16318

5331-01-552-0877 (T161841)

NIIN: 01-552-0877
In stock
NSN: 5331-01-552-0877
FSC Code: 5331
MPN: T161841

5331-01-533-6103 (T159362)

NIIN: 01-533-6103
In stock
NSN: 5331-01-533-6103
FSC Code: 5331
MPN: T159362

5331-01-533-6098 (T159373)

NIIN: 01-533-6098
In stock
NSN: 5331-01-533-6098
FSC Code: 5331
MPN: T159373

5331-01-540-7190 (T160541)

NIIN: 01-540-7190
In stock
NSN: 5331-01-540-7190
FSC Code: 5331
MPN: T160541

5331-01-474-4496 (T162516)

NIIN: 01-474-4496
In stock
NSN: 5331-01-474-4496
FSC Code: 5331
MPN: T162516

5331-01-540-6820 (T158580)

NIIN: 01-540-6820
In stock
NSN: 5331-01-540-6820
FSC Code: 5331
MPN: T158580

5331-01-570-3049 (T158243)

NIIN: 01-570-3049
In stock
NSN: 5331-01-570-3049
FSC Code: 5331
MPN: T158243

5331-01-540-6838 (T158339)

NIIN: 01-540-6838
In stock
NSN: 5331-01-540-6838
FSC Code: 5331
MPN: T158339

5331-01-552-0873 (T155729)

NIIN: 01-552-0873
In stock
NSN: 5331-01-552-0873
FSC Code: 5331
MPN: T155729

5331-01-571-4024 (T155970)

NIIN: 01-571-4024
In stock
NSN: 5331-01-571-4024
FSC Code: 5331
MPN: T155970

5331-01-570-2849 (T155987)

NIIN: 01-570-2849
In stock
NSN: 5331-01-570-2849
FSC Code: 5331
MPN: T155987

5331-01-571-4809 (T158240)

NIIN: 01-571-4809
In stock
NSN: 5331-01-571-4809
FSC Code: 5331
MPN: T158240

5331-01-570-2848 (T155769)

NIIN: 01-570-2848
In stock
NSN: 5331-01-570-2848
FSC Code: 5331
MPN: T155769

5331-01-570-2847 (T155969)

NIIN: 01-570-2847
In stock
NSN: 5331-01-570-2847
FSC Code: 5331
MPN: T155969

5331-01-570-3037 (T155975)

NIIN: 01-570-3037
In stock
NSN: 5331-01-570-3037
FSC Code: 5331
MPN: T155975

5331-01-570-3023 (T153832)

NIIN: 01-570-3023
In stock
NSN: 5331-01-570-3023
FSC Code: 5331
MPN: T153832

5331-01-570-3030 (T155935)

NIIN: 01-570-3030
In stock
NSN: 5331-01-570-3030
FSC Code: 5331
MPN: T155935

5331-01-552-0897 (T155766)

NIIN: 01-552-0897
In stock
NSN: 5331-01-552-0897
FSC Code: 5331
MPN: T155766

5331-01-570-3025 (T155702)

NIIN: 01-570-3025
In stock
NSN: 5331-01-570-3025
FSC Code: 5331
MPN: T155702

5331-01-570-2846 (T153833)

NIIN: 01-570-2846
In stock
NSN: 5331-01-570-2846
FSC Code: 5331
MPN: T153833

5331-01-570-3018 (T152624)

NIIN: 01-570-3018
In stock
NSN: 5331-01-570-3018
FSC Code: 5331
MPN: T152624