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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.

5331-01-050-1534 (5331PL0639040)

NIIN: 01-050-1534
In stock
NSN: 5331-01-050-1534
FSC Code: 5331
MPN: 5331PL0639040

5331-00-759-6970 (5331PL0166738)

NIIN: 00-759-6970
In stock
NSN: 5331-00-759-6970
FSC Code: 5331
MPN: 5331PL0166738

5331-00-508-9358 (5331PL0632213)

NIIN: 00-508-9358
In stock
NSN: 5331-00-508-9358
FSC Code: 5331
MPN: 5331PL0632213

5331-00-425-2021 (5331PL0211458)

NIIN: 00-425-2021
In stock
NSN: 5331-00-425-2021
FSC Code: 5331
MPN: 5331PL0211458

5331-01-335-7592 (5331PL0370661)

NIIN: 01-335-7592
In stock
NSN: 5331-01-335-7592
FSC Code: 5331
MPN: 5331PL0370661

5331-00-253-4844 (5331PL0163124)

NIIN: 00-253-4844
In stock
NSN: 5331-00-253-4844
FSC Code: 5331
MPN: 5331PL0163124

5331-00-132-6971 (5331PL0191042)

NIIN: 00-132-6971
In stock
NSN: 5331-00-132-6971
FSC Code: 5331
MPN: 5331PL0191042

5331-01-092-8746 (5331PL0166423)

NIIN: 01-092-8746
In stock
NSN: 5331-01-092-8746
FSC Code: 5331
MPN: 5331PL0166423

5331-01-251-7579 (5331PL0166451)

NIIN: 01-251-7579
In stock
NSN: 5331-01-251-7579
FSC Code: 5331
MPN: 5331PL0166451

5331-01-250-6307 (5331PL0166449)

NIIN: 01-250-6307
In stock
NSN: 5331-01-250-6307
FSC Code: 5331
MPN: 5331PL0166449

5331-00-852-4230 (5331PL0143896)

NIIN: 00-852-4230
In stock
NSN: 5331-00-852-4230
FSC Code: 5331
MPN: 5331PL0143896

5331-01-093-2486 (5331PL0166425)

NIIN: 01-093-2486
In stock
NSN: 5331-01-093-2486
FSC Code: 5331
MPN: 5331PL0166425

5331-01-250-5263 (5331PL0166445)

NIIN: 01-250-5263
In stock
NSN: 5331-01-250-5263
FSC Code: 5331
MPN: 5331PL0166445

5331-00-045-4559 (5331PL0144157)

NIIN: 00-045-4559
In stock
NSN: 5331-00-045-4559
FSC Code: 5331
MPN: 5331PL0144157

5331-00-826-3368 (5331PL0166395)

NIIN: 00-826-3368
In stock
NSN: 5331-00-826-3368
FSC Code: 5331
MPN: 5331PL0166395

5331-00-103-2001 (5331PL0140344)

NIIN: 00-103-2001
In stock
NSN: 5331-00-103-2001
FSC Code: 5331
MPN: 5331PL0140344

5331-00-926-0056 (5331PL0140368)

NIIN: 00-926-0056
In stock
NSN: 5331-00-926-0056
FSC Code: 5331
MPN: 5331PL0140368

5331-00-922-5923 (5331PL0140359)

NIIN: 00-922-5923
In stock
NSN: 5331-00-922-5923
FSC Code: 5331
MPN: 5331PL0140359

5331-00-005-0799 (5331PL0140365)

NIIN: 00-005-0799
In stock
NSN: 5331-00-005-0799
FSC Code: 5331
MPN: 5331PL0140365

5331-01-063-6433 (5331PL0140399)

NIIN: 01-063-6433
In stock
NSN: 5331-01-063-6433
FSC Code: 5331
MPN: 5331PL0140399

5331-00-922-5952 (5331PL0140362)

NIIN: 00-922-5952
In stock
NSN: 5331-00-922-5952
FSC Code: 5331
MPN: 5331PL0140362

5331-00-922-5057 (5331PL0140366)

NIIN: 00-922-5057
In stock
NSN: 5331-00-922-5057
FSC Code: 5331
MPN: 5331PL0140366

5331-00-171-7429 (5331-171-7429)

NIIN: 00-171-7429
In stock
NSN: 5331-00-171-7429
FSC Code: 5331
MPN: 53311717429

5331-01-440-7386 (1D1347-06992)

NIIN: 01-440-7386
In stock
NSN: 5331-01-440-7386
FSC Code: 5331
MPN: 1D134706992

5331-99-942-9902 (SSML7-17-1D006)

NIIN: 99-942-9902
In stock
NSN: 5331-99-942-9902
FSC Code: 5331
MPN: SSML7171D006

5331-01-440-7384 (1C8538-X0022)

NIIN: 01-440-7384
In stock
NSN: 5331-01-440-7384
FSC Code: 5331
MPN: 1C8538X0022

5331-01-545-8964 (1C401-60)

NIIN: 01-545-8964
In stock
NSN: 5331-01-545-8964
FSC Code: 5331
MPN: 1C40160

5331-01-545-8963 (81X-8-64C8)

NIIN: 01-545-8963
In stock
NSN: 5331-01-545-8963
FSC Code: 5331
MPN: 81X864C8

5331-01-546-6394 (2509A00804)

NIIN: 01-546-6394
In stock
NSN: 5331-01-546-6394
FSC Code: 5331
MPN: 2509A00804

5331-01-544-2470 (1C401-36)

NIIN: 01-544-2470
In stock
NSN: 5331-01-544-2470
FSC Code: 5331
MPN: 1C40136

5331-01-544-2469 (WB200A01600BRNL)

NIIN: 01-544-2469
In stock
NSN: 5331-01-544-2469
FSC Code: 5331
MPN: WB200A01600BRNL

5331-01-544-0490 (31-5X1-8-64C8)

NIIN: 01-544-0490
In stock
NSN: 5331-01-544-0490
FSC Code: 5331
MPN: 315X1864C8

5331-01-546-3449 (2509A00954)

NIIN: 01-546-3449
In stock
NSN: 5331-01-546-3449
FSC Code: 5331
MPN: 2509A00954

5331-01-544-2472 (8X1-8-64C8)

NIIN: 01-544-2472
In stock
NSN: 5331-01-544-2472
FSC Code: 5331
MPN: 8X1864C8

5331-01-546-3448 (2510105202)

NIIN: 01-546-3448
In stock
NSN: 5331-01-546-3448
FSC Code: 5331
MPN: 2510105202

5331-01-544-1251 (1C401-35)

NIIN: 01-544-1251
In stock
NSN: 5331-01-544-1251
FSC Code: 5331
MPN: 1C40135

5331-01-544-1249 (WB250A01250BRNL)

NIIN: 01-544-1249
In stock
NSN: 5331-01-544-1249
FSC Code: 5331
MPN: WB250A01250BRNL

5331-01-548-2708 (1BG-65)

NIIN: 01-548-2708
In stock
NSN: 5331-01-548-2708
FSC Code: 5331
MPN: 1BG65

5331-01-529-9013 (1BG70)

NIIN: 01-529-9013
In stock
NSN: 5331-01-529-9013
FSC Code: 5331
MPN: 1BG70

5331-01-390-6758 (1B885506992)

NIIN: 01-390-6758
In stock
NSN: 5331-01-390-6758
FSC Code: 5331
MPN: 1B885506992

5331-01-266-3292 (5-330N304-75)

NIIN: 01-266-3292
In stock
NSN: 5331-01-266-3292
FSC Code: 5331
MPN: 5330N30475

5331-00-171-8003 (5330L23-000)

NIIN: 00-171-8003
In stock
NSN: 5331-00-171-8003
FSC Code: 5331
MPN: 5330L23000

5331-01-387-9487 (1B5776)

NIIN: 01-387-9487
In stock
NSN: 5331-01-387-9487
FSC Code: 5331
MPN: 1B5776

5331-00-297-5329 (5330H21-001-1)

NIIN: 00-297-5329
In stock
NSN: 5331-00-297-5329
FSC Code: 5331
MPN: 5330H210011

5331-01-119-3122 (5-330-89-00)

NIIN: 01-119-3122
In stock
NSN: 5331-01-119-3122
FSC Code: 5331
MPN: 53308900

5331-00-468-5065 (5330-99-193)

NIIN: 00-468-5065
In stock
NSN: 5331-00-468-5065
FSC Code: 5331
MPN: 533099193

5331-00-811-3484 (5330-811-3484)

NIIN: 00-811-3484
In stock
NSN: 5331-00-811-3484
FSC Code: 5331
MPN: 53308113484

5331-00-297-7021 (5330-228-4)

NIIN: 00-297-7021
In stock
NSN: 5331-00-297-7021
FSC Code: 5331
MPN: 53302284