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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.

5331-01-122-0343 (6879100-114)

NIIN: 01-122-0343
In stock
NSN: 5331-01-122-0343
FSC Code: 5331
MPN: 6879100114

5331-01-122-0826 (6879100-153)

NIIN: 01-122-0826
In stock
NSN: 5331-01-122-0826
FSC Code: 5331
MPN: 6879100153

5331-01-122-0341 (6879100-112)

NIIN: 01-122-0341
In stock
NSN: 5331-01-122-0341
FSC Code: 5331
MPN: 6879100112

5331-01-135-6021 (6879100-233)

NIIN: 01-135-6021
In stock
NSN: 5331-01-135-6021
FSC Code: 5331
MPN: 6879100233

5331-01-126-4180 (6879100-115)

NIIN: 01-126-4180
In stock
NSN: 5331-01-126-4180
FSC Code: 5331
MPN: 6879100115

5331-01-136-2131 (6879100-017)

NIIN: 01-136-2131
In stock
NSN: 5331-01-136-2131
FSC Code: 5331
MPN: 6879100017

5331-01-135-6022 (6879100-009)

NIIN: 01-135-6022
In stock
NSN: 5331-01-135-6022
FSC Code: 5331
MPN: 6879100009

5331-01-060-3758 (6877242-003)

NIIN: 01-060-3758
In stock
NSN: 5331-01-060-3758
FSC Code: 5331
MPN: 6877242003

5331-01-064-2921 (6877242-006)

NIIN: 01-064-2921
In stock
NSN: 5331-01-064-2921
FSC Code: 5331
MPN: 6877242006

5331-01-016-4292 (6876027-06)

NIIN: 01-016-4292
In stock
NSN: 5331-01-016-4292
FSC Code: 5331
MPN: 687602706

5331-01-398-9854 (2MP3801-5CP)

NIIN: 01-398-9854
In stock
NSN: 5331-01-398-9854
FSC Code: 5331
MPN: 2MP38015CP

5331-00-616-1736 (6873928-012)

NIIN: 00-616-1736
In stock
NSN: 5331-00-616-1736
FSC Code: 5331
MPN: 6873928012

5331-00-760-8115 (6873930-001)

NIIN: 00-760-8115
In stock
NSN: 5331-00-760-8115
FSC Code: 5331
MPN: 6873930001

5331-00-137-8266 (68-739)

NIIN: 00-137-8266
In stock
NSN: 5331-00-137-8266
FSC Code: 5331
MPN: 68739

5331-01-543-5000 (2M08777)

NIIN: 01-543-5000
In stock
NSN: 5331-01-543-5000
FSC Code: 5331
MPN: 2M08777

5331-01-518-0634 (2M0344)

NIIN: 01-518-0634
In stock
NSN: 5331-01-518-0634
FSC Code: 5331
MPN: 2M0344

5331-01-469-8240 (2M)

NIIN: 01-469-8240
In stock
NSN: 5331-01-469-8240
FSC Code: 5331
MPN: 2M

5331-01-536-6013 (50001-916-0260)

NIIN: 01-536-6013
In stock
NSN: 5331-01-536-6013
FSC Code: 5331
MPN: 500019160260

5331-01-534-7891 (HNBR-10)

NIIN: 01-534-7891
In stock
NSN: 5331-01-534-7891
FSC Code: 5331
MPN: HNBR10

5331-01-536-5792 (2KP855)

NIIN: 01-536-5792
In stock
NSN: 5331-01-536-5792
FSC Code: 5331
MPN: 2KP855

5331-01-534-7905 (2KP368)

NIIN: 01-534-7905
In stock
NSN: 5331-01-534-7905
FSC Code: 5331
MPN: 2KP368

5331-01-536-0929 (2KP367)

NIIN: 01-536-0929
In stock
NSN: 5331-01-536-0929
FSC Code: 5331
MPN: 2KP367

5331-00-139-0665 (68-724)

NIIN: 00-139-0665
In stock
NSN: 5331-00-139-0665
FSC Code: 5331
MPN: 68724

5331-01-115-6410 (6872366-2)

NIIN: 01-115-6410
In stock
NSN: 5331-01-115-6410
FSC Code: 5331
MPN: 68723662

5331-01-285-7103 (68-726)

NIIN: 01-285-7103
In stock
NSN: 5331-01-285-7103
FSC Code: 5331
MPN: 68726

5331-01-065-2573 (6872366-4)

NIIN: 01-065-2573
In stock
NSN: 5331-01-065-2573
FSC Code: 5331
MPN: 68723664

5331-00-229-3568 (6871610-213)

NIIN: 00-229-3568
In stock
NSN: 5331-00-229-3568
FSC Code: 5331
MPN: 6871610213

5331-01-328-4156 (68715P0W3)

NIIN: 01-328-4156
In stock
NSN: 5331-01-328-4156
FSC Code: 5331
MPN: 68715P0W3

5331-01-346-0287 (2J7767)

NIIN: 01-346-0287
In stock
NSN: 5331-01-346-0287
FSC Code: 5331
MPN: 2J7767

5331-00-259-2271 (6871092-115)

NIIN: 00-259-2271
In stock
NSN: 5331-00-259-2271
FSC Code: 5331
MPN: 6871092115

5331-00-259-2304 (6871092-140)

NIIN: 00-259-2304
In stock
NSN: 5331-00-259-2304
FSC Code: 5331
MPN: 6871092140

5331-01-396-8008 (2HXXEPPB9)

NIIN: 01-396-8008
In stock
NSN: 5331-01-396-8008
FSC Code: 5331
MPN: 2HXXEPPB9

5331-00-259-2292 (6871092-124)

NIIN: 00-259-2292
In stock
NSN: 5331-00-259-2292
FSC Code: 5331
MPN: 6871092124

5331-00-259-2284 (6871092-117)

NIIN: 00-259-2284
In stock
NSN: 5331-00-259-2284
FSC Code: 5331
MPN: 6871092117

5331-00-259-2298 (6871092-127)

NIIN: 00-259-2298
In stock
NSN: 5331-00-259-2298
FSC Code: 5331
MPN: 6871092127

5331-01-464-5974 (2IN-792S-BD)

NIIN: 01-464-5974
In stock
NSN: 5331-01-464-5974
FSC Code: 5331
MPN: 2IN792SBD

5331-00-259-2311 (6871092-109)

NIIN: 00-259-2311
In stock
NSN: 5331-00-259-2311
FSC Code: 5331
MPN: 6871092109

5331-00-259-2278 (6871092-116)

NIIN: 00-259-2278
In stock
NSN: 5331-00-259-2278
FSC Code: 5331
MPN: 6871092116

5331-00-259-2285 (6871092-120)

NIIN: 00-259-2285
In stock
NSN: 5331-00-259-2285
FSC Code: 5331
MPN: 6871092120

5331-00-259-2266 (6871092-114)

NIIN: 00-259-2266
In stock
NSN: 5331-00-259-2266
FSC Code: 5331
MPN: 6871092114

5331-00-259-2288 (6871092-123)

NIIN: 00-259-2288
In stock
NSN: 5331-00-259-2288
FSC Code: 5331
MPN: 6871092123

5331-00-261-4924 (6871092-110)

NIIN: 00-261-4924
In stock
NSN: 5331-00-261-4924
FSC Code: 5331
MPN: 6871092110

5331-00-259-2314 (6871092-119)

NIIN: 00-259-2314
In stock
NSN: 5331-00-259-2314
FSC Code: 5331
MPN: 6871092119

5331-00-259-2253 (6871092-113)

NIIN: 00-259-2253
In stock
NSN: 5331-00-259-2253
FSC Code: 5331
MPN: 6871092113

5331-01-417-6444 (2HX-401M2TRING)

NIIN: 01-417-6444
In stock
NSN: 5331-01-417-6444
FSC Code: 5331
MPN: 2HX401M2TRING

5331-00-259-2308 (6871092-108)

NIIN: 00-259-2308
In stock
NSN: 5331-00-259-2308
FSC Code: 5331
MPN: 6871092108

5331-00-261-4925 (6871092-112)

NIIN: 00-261-4925
In stock
NSN: 5331-00-261-4925
FSC Code: 5331
MPN: 6871092112

5331-01-022-8131 (6871091-16)

NIIN: 01-022-8131
In stock
NSN: 5331-01-022-8131
FSC Code: 5331
MPN: 687109116