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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.

5331-00-046-4602 (501-2118969)

NIIN: 00-046-4602
In stock
NSN: 5331-00-046-4602
FSC Code: 5331
MPN: 5012118969

5331-00-775-2514 (5-011E540-8)

NIIN: 00-775-2514
In stock
NSN: 5331-00-775-2514
FSC Code: 5331
MPN: 5011E5408

5331-00-248-6027 (50-11-06)

NIIN: 00-248-6027
In stock
NSN: 5331-00-248-6027
FSC Code: 5331
MPN: 501106

5331-00-248-6028 (50-11-05)

NIIN: 00-248-6028
In stock
NSN: 5331-00-248-6028
FSC Code: 5331
MPN: 501105

5331-00-882-9058 (50101-1400)

NIIN: 00-882-9058
In stock
NSN: 5331-00-882-9058
FSC Code: 5331
MPN: 501011400

5331-01-088-9329 (500H61114)

NIIN: 01-088-9329
In stock
NSN: 5331-01-088-9329
FSC Code: 5331
MPN: 500H61114

5331-01-044-5232 (5-006N304-75)

NIIN: 01-044-5232
In stock
NSN: 5331-01-044-5232
FSC Code: 5331
MPN: 5006N30475

5331-01-044-1972 (5006-59)

NIIN: 01-044-1972
In stock
NSN: 5331-01-044-1972
FSC Code: 5331
MPN: 500659

5331-01-292-0158 (50063-512)

NIIN: 01-292-0158
In stock
NSN: 5331-01-292-0158
FSC Code: 5331
MPN: 50063512

5331-01-322-0746 (5005-709)

NIIN: 01-322-0746
In stock
NSN: 5331-01-322-0746
FSC Code: 5331
MPN: 5005709

5331-01-322-0745 (5005-708)

NIIN: 01-322-0745
In stock
NSN: 5331-01-322-0745
FSC Code: 5331
MPN: 5005708

5331-01-181-9665 (5005-32)

NIIN: 01-181-9665
In stock
NSN: 5331-01-181-9665
FSC Code: 5331
MPN: 500532

5331-01-216-7394 (5005144-1)

NIIN: 01-216-7394
In stock
NSN: 5331-01-216-7394
FSC Code: 5331
MPN: 50051441

5331-01-541-4703 (174674-3)

NIIN: 01-541-4703
In stock
NSN: 5331-01-541-4703
FSC Code: 5331
MPN: 1746743

5331-00-060-2526 (50043-1224)

NIIN: 00-060-2526
In stock
NSN: 5331-00-060-2526
FSC Code: 5331
MPN: 500431224

5331-01-351-2747 (17460-7)

NIIN: 01-351-2747
In stock
NSN: 5331-01-351-2747
FSC Code: 5331
MPN: 174607

5331-01-525-6024 (17-44712-00)

NIIN: 01-525-6024
In stock
NSN: 5331-01-525-6024
FSC Code: 5331
MPN: 174471200

5331-01-526-0237 (17-44139-00)

NIIN: 01-526-0237
In stock
NSN: 5331-01-526-0237
FSC Code: 5331
MPN: 174413900

5331-00-171-5820 (5-003)

NIIN: 00-171-5820
In stock
NSN: 5331-00-171-5820
FSC Code: 5331
MPN: 5003

5331-00-410-2966 (50-023)

NIIN: 00-410-2966
In stock
NSN: 5331-00-410-2966
FSC Code: 5331
MPN: 50023

5331-00-038-8091 (50-023)

NIIN: 00-038-8091
In stock
NSN: 5331-00-038-8091
FSC Code: 5331
MPN: 50023

5331-00-809-1053 (500-227)

NIIN: 00-809-1053
In stock
NSN: 5331-00-809-1053
FSC Code: 5331
MPN: 500227

5331-01-340-8191 (173EV-84-315706)

NIIN: 01-340-8191
In stock
NSN: 5331-01-340-8191
FSC Code: 5331
MPN: 173EV84315706

5331-01-117-6281 (5-001S604-70)

NIIN: 01-117-6281
In stock
NSN: 5331-01-117-6281
FSC Code: 5331
MPN: 5001S60470

5331-01-297-1096 (500185-V)

NIIN: 01-297-1096
In stock
NSN: 5331-01-297-1096
FSC Code: 5331
MPN: 500185V

5331-01-181-9664 (5001-52)

NIIN: 01-181-9664
In stock
NSN: 5331-01-181-9664
FSC Code: 5331
MPN: 500152

5331-01-524-4873 (173-5549)

NIIN: 01-524-4873
In stock
NSN: 5331-01-524-4873
FSC Code: 5331
MPN: 1735549

5331-00-410-2965 (50-014)

NIIN: 00-410-2965
In stock
NSN: 5331-00-410-2965
FSC Code: 5331
MPN: 50014

5331-01-480-6154 (173399-A3)

NIIN: 01-480-6154
In stock
NSN: 5331-01-480-6154
FSC Code: 5331
MPN: 173399A3

5331-01-228-0435 (500-101-012)

NIIN: 01-228-0435
In stock
NSN: 5331-01-228-0435
FSC Code: 5331
MPN: 500101012

5331-01-177-8168 (500-101-114)

NIIN: 01-177-8168
In stock
NSN: 5331-01-177-8168
FSC Code: 5331
MPN: 500101114

5331-01-006-4925 (5-001)

NIIN: 01-006-4925
In stock
NSN: 5331-01-006-4925
FSC Code: 5331
MPN: 5001

5331-01-409-0275 (930623PC18)

NIIN: 01-409-0275
In stock
NSN: 5331-01-409-0275
FSC Code: 5331
MPN: 930623PC18

5331-01-126-0824 (50006C)

NIIN: 01-126-0824
In stock
NSN: 5331-01-126-0824
FSC Code: 5331
MPN: 50006C

5331-01-480-6144 (172909-A1)

NIIN: 01-480-6144
In stock
NSN: 5331-01-480-6144
FSC Code: 5331
MPN: 172909A1

5331-99-815-2359 (85-57-27-700-5736)

NIIN: 99-815-2359
In stock
NSN: 5331-99-815-2359
FSC Code: 5331
MPN: 8557277005736

5331-99-200-4783 (BSISO3601-1SIZE010)

NIIN: 99-200-4783
In stock
NSN: 5331-99-200-4783
FSC Code: 5331
MPN: BSISO36011SIZE010

5331-99-100-7391 (R3075ML5372)

NIIN: 99-100-7391
In stock
NSN: 5331-99-100-7391
FSC Code: 5331
MPN: R3075ML5372

5331-01-245-4085 (5000427-5H)

NIIN: 01-245-4085
In stock
NSN: 5331-01-245-4085
FSC Code: 5331
MPN: 50004275H

5331-99-947-1022 (BS1806-238NBRM70)

NIIN: 99-947-1022
In stock
NSN: 5331-99-947-1022
FSC Code: 5331
MPN: BS1806238NBRM70

5331-01-075-4947 (50-00414-02)

NIIN: 01-075-4947
In stock
NSN: 5331-01-075-4947
FSC Code: 5331
MPN: 500041402

5331-01-077-5231 (50-00413-02)

NIIN: 01-077-5231
In stock
NSN: 5331-01-077-5231
FSC Code: 5331
MPN: 500041302

5331-00-180-9842 (50001A214)

NIIN: 00-180-9842
In stock
NSN: 5331-00-180-9842
FSC Code: 5331
MPN: 50001A214

5331-00-357-9678 (50001A215)

NIIN: 00-357-9678
In stock
NSN: 5331-00-357-9678
FSC Code: 5331
MPN: 50001A215

5331-00-843-0394 (50001A6)

NIIN: 00-843-0394
In stock
NSN: 5331-00-843-0394
FSC Code: 5331
MPN: 50001A6

5331-00-585-3167 (50001A219)

NIIN: 00-585-3167
In stock
NSN: 5331-00-585-3167
FSC Code: 5331
MPN: 50001A219

5331-00-240-7804 (50001A11)

NIIN: 00-240-7804
In stock
NSN: 5331-00-240-7804
FSC Code: 5331
MPN: 50001A11

5331-00-877-4384 (50001-226-0030)

NIIN: 00-877-4384
In stock
NSN: 5331-00-877-4384
FSC Code: 5331
MPN: 500012260030