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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.

5331-01-024-3349 (2R774PC118M)

NIIN: 01-024-3349
In stock
NSN: 5331-01-024-3349
FSC Code: 5331
MPN: 2R774PC118M

5331-00-599-2268 (2R0239)

NIIN: 00-599-2268
In stock
NSN: 5331-00-599-2268
FSC Code: 5331
MPN: 2R0239

5331-01-481-5299 (1006-516)

NIIN: 01-481-5299
In stock
NSN: 5331-01-481-5299
FSC Code: 5331
MPN: 1006516

5331-01-481-5294 (1006-517)

NIIN: 01-481-5294
In stock
NSN: 5331-01-481-5294
FSC Code: 5331
MPN: 1006517

5331-00-862-3012 (2PS628)

NIIN: 00-862-3012
In stock
NSN: 5331-00-862-3012
FSC Code: 5331
MPN: 2PS628

5331-01-478-5596 (1006-258)

NIIN: 01-478-5596
In stock
NSN: 5331-01-478-5596
FSC Code: 5331
MPN: 1006258

5331-01-478-5595 (1006-227)

NIIN: 01-478-5595
In stock
NSN: 5331-01-478-5595
FSC Code: 5331
MPN: 1006227

5331-01-179-7677 (2P3628)

NIIN: 01-179-7677
In stock
NSN: 5331-01-179-7677
FSC Code: 5331
MPN: 2P3628

5331-99-786-1288 (VA-49-0042-610)

NIIN: 99-786-1288
In stock
NSN: 5331-99-786-1288
FSC Code: 5331
MPN: VA490042610

5331-01-365-3326 (100-607-8810)

NIIN: 01-365-3326
In stock
NSN: 5331-01-365-3326
FSC Code: 5331
MPN: 1006078810

5331-99-800-3086 (100-607-8814)

NIIN: 99-800-3086
In stock
NSN: 5331-99-800-3086
FSC Code: 5331
MPN: 1006078814

5331-01-534-3649 (2-038/E6434-75)

NIIN: 01-534-3649
In stock
NSN: 5331-01-534-3649
FSC Code: 5331
MPN: 2038E643475

5331-01-534-3678 (10-06-023-002/10)

NIIN: 01-534-3678
In stock
NSN: 5331-01-534-3678
FSC Code: 5331
MPN: 100602300210

5331-01-390-5921 (1005G88-001)

NIIN: 01-390-5921
In stock
NSN: 5331-01-390-5921
FSC Code: 5331
MPN: 1005G88001

5331-01-390-5916 (1005G86-5)

NIIN: 01-390-5916
In stock
NSN: 5331-01-390-5916
FSC Code: 5331
MPN: 1005G865

5331-01-390-5919 (1005G87-1)

NIIN: 01-390-5919
In stock
NSN: 5331-01-390-5919
FSC Code: 5331
MPN: 1005G871

5331-99-449-4331 (100-562-8808)

NIIN: 99-449-4331
In stock
NSN: 5331-99-449-4331
FSC Code: 5331
MPN: 1005628808

5331-99-786-1285 (VA-49-0042-540)

NIIN: 99-786-1285
In stock
NSN: 5331-99-786-1285
FSC Code: 5331
MPN: VA490042540

5331-99-858-0606 (VA-49-0061-536)

NIIN: 99-858-0606
In stock
NSN: 5331-99-858-0606
FSC Code: 5331
MPN: VA490061536

5331-99-717-1005 (VA-49-0042-532)

NIIN: 99-717-1005
In stock
NSN: 5331-99-717-1005
FSC Code: 5331
MPN: VA490042532

5331-99-924-3366 (VA-49-0042-517)

NIIN: 99-924-3366
In stock
NSN: 5331-99-924-3366
FSC Code: 5331
MPN: VA490042517

5331-00-137-3448 (2N-3350)

NIIN: 00-137-3448
In stock
NSN: 5331-00-137-3448
FSC Code: 5331
MPN: 2N3350

5331-01-295-6758 (2MP4124)

NIIN: 01-295-6758
In stock
NSN: 5331-01-295-6758
FSC Code: 5331
MPN: 2MP4124

5331-01-137-6888 (2MP3801-4)

NIIN: 01-137-6888
In stock
NSN: 5331-01-137-6888
FSC Code: 5331
MPN: 2MP38014

5331-00-947-4191 (2MP3801-3)

NIIN: 00-947-4191
In stock
NSN: 5331-00-947-4191
FSC Code: 5331
MPN: 2MP38013

5331-01-129-9665 (2MP3801-1)

NIIN: 01-129-9665
In stock
NSN: 5331-01-129-9665
FSC Code: 5331
MPN: 2MP38011

5331-00-757-8642 (2MP2582)

NIIN: 00-757-8642
In stock
NSN: 5331-00-757-8642
FSC Code: 5331
MPN: 2MP2582

5331-00-226-0022 (2M8663)

NIIN: 00-226-0022
In stock
NSN: 5331-00-226-0022
FSC Code: 5331
MPN: 2M8663

5331-00-458-1909 (2M3818)

NIIN: 00-458-1909
In stock
NSN: 5331-00-458-1909
FSC Code: 5331
MPN: 2M3818

5331-00-879-8400 (2M2561)

NIIN: 00-879-8400
In stock
NSN: 5331-00-879-8400
FSC Code: 5331
MPN: 2M2561

5331-00-074-3767 (2M1309)

NIIN: 00-074-3767
In stock
NSN: 5331-00-074-3767
FSC Code: 5331
MPN: 2M1309

5331-00-979-5501 (2M0340)

NIIN: 00-979-5501
In stock
NSN: 5331-00-979-5501
FSC Code: 5331
MPN: 2M0340

5331-00-843-5719 (2L1265)

NIIN: 00-843-5719
In stock
NSN: 5331-00-843-5719
FSC Code: 5331
MPN: 2L1265

5331-00-855-8041 (2K8198)

NIIN: 00-855-8041
In stock
NSN: 5331-00-855-8041
FSC Code: 5331
MPN: 2K8198

5331-00-855-8044 (2K-8257)

NIIN: 00-855-8044
In stock
NSN: 5331-00-855-8044
FSC Code: 5331
MPN: 2K8257

5331-00-937-5155 (2K8199)

NIIN: 00-937-5155
In stock
NSN: 5331-00-937-5155
FSC Code: 5331
MPN: 2K8199

5331-00-950-2091 (2J3961)

NIIN: 00-950-2091
In stock
NSN: 5331-00-950-2091
FSC Code: 5331
MPN: 2J3961

5331-00-929-5533 (2J1826)

NIIN: 00-929-5533
In stock
NSN: 5331-00-929-5533
FSC Code: 5331
MPN: 2J1826

5331-01-127-2971 (2J224P016)

NIIN: 01-127-2971
In stock
NSN: 5331-01-127-2971
FSC Code: 5331
MPN: 2J224P016

5331-01-567-2672 (100-4)

NIIN: 01-567-2672
In stock
NSN: 5331-01-567-2672
FSC Code: 5331
MPN: 1004

5331-01-534-7372 (1003DH-S0801211)

NIIN: 01-534-7372
In stock
NSN: 5331-01-534-7372
FSC Code: 5331
MPN: 1003DHS0801211

5331-00-948-6863 (2J0744)

NIIN: 00-948-6863
In stock
NSN: 5331-00-948-6863
FSC Code: 5331
MPN: 2J0744

5331-01-213-6795 (2HS222)

NIIN: 01-213-6795
In stock
NSN: 5331-01-213-6795
FSC Code: 5331
MPN: 2HS222

5331-01-269-4323 (2HL554)

NIIN: 01-269-4323
In stock
NSN: 5331-01-269-4323
FSC Code: 5331
MPN: 2HL554

5331-01-214-4857 (2HL541)

NIIN: 01-214-4857
In stock
NSN: 5331-01-214-4857
FSC Code: 5331
MPN: 2HL541

5331-01-269-6152 (2HE3)

NIIN: 01-269-6152
In stock
NSN: 5331-01-269-6152
FSC Code: 5331
MPN: 2HE3

5331-00-074-3765 (2H6124)

NIIN: 00-074-3765
In stock
NSN: 5331-00-074-3765
FSC Code: 5331
MPN: 2H6124

5331-00-141-5069 (2H3935)

NIIN: 00-141-5069
In stock
NSN: 5331-00-141-5069
FSC Code: 5331
MPN: 2H3935