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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.

5331-00-082-1110 (A-11443)

NIIN: 00-082-1110
In stock
NSN: 5331-00-082-1110
FSC Code: 5331
MPN: A11443

5331-00-118-9094 (A114)

NIIN: 00-118-9094
In stock
NSN: 5331-00-118-9094
FSC Code: 5331
MPN: A114

5331-00-308-6554 (A1134)

NIIN: 00-308-6554
In stock
NSN: 5331-00-308-6554
FSC Code: 5331
MPN: A1134

5331-00-069-9108 (A-113)

NIIN: 00-069-9108
In stock
NSN: 5331-00-069-9108
FSC Code: 5331
MPN: A113

5331-00-069-9129 (A-111)

NIIN: 00-069-9129
In stock
NSN: 5331-00-069-9129
FSC Code: 5331
MPN: A111

5331-00-959-6780 (A1110-172PC7)

NIIN: 00-959-6780
In stock
NSN: 5331-00-959-6780
FSC Code: 5331
MPN: A1110172PC7

5331-01-519-7132 (53100178-1)

NIIN: 01-519-7132
In stock
NSN: 5331-01-519-7132
FSC Code: 5331
MPN: 531001781

5331-12-344-2618 (530000 700429530000)

NIIN: 12-344-2618
In stock
NSN: 5331-12-344-2618
FSC Code: 5331
MPN: 530000700429530000

5331-01-440-8094 (5-309L1218-80)

NIIN: 01-440-8094
In stock
NSN: 5331-01-440-8094
FSC Code: 5331
MPN: 5309L121880

5331-01-185-8542 (A1074.476)

NIIN: 01-185-8542
In stock
NSN: 5331-01-185-8542
FSC Code: 5331
MPN: A1074476

5331-01-144-6173 (A-10696)

NIIN: 01-144-6173
In stock
NSN: 5331-01-144-6173
FSC Code: 5331
MPN: A10696

5331-01-472-5023 (53021-01018)

NIIN: 01-472-5023
In stock
NSN: 5331-01-472-5023
FSC Code: 5331
MPN: 5302101018

5331-01-274-3107 (A1022X21)

NIIN: 01-274-3107
In stock
NSN: 5331-01-274-3107
FSC Code: 5331
MPN: A1022X21

5331-01-285-4787 (A1022X011)

NIIN: 01-285-4787
In stock
NSN: 5331-01-285-4787
FSC Code: 5331
MPN: A1022X011

5331-01-172-1855 (A1022X10)

NIIN: 01-172-1855
In stock
NSN: 5331-01-172-1855
FSC Code: 5331
MPN: A1022X10

5331-01-464-2409 (530-10010-1)

NIIN: 01-464-2409
In stock
NSN: 5331-01-464-2409
FSC Code: 5331
MPN: 530100101

5331-01-464-2368 (530-10040-1)

NIIN: 01-464-2368
In stock
NSN: 5331-01-464-2368
FSC Code: 5331
MPN: 530100401

5331-01-111-9279 (A1019)

NIIN: 01-111-9279
In stock
NSN: 5331-01-111-9279
FSC Code: 5331
MPN: A1019

5331-01-471-6888 (53-0049)

NIIN: 01-471-6888
In stock
NSN: 5331-01-471-6888
FSC Code: 5331
MPN: 530049

5331-01-299-8207 (A100SR-8)

NIIN: 01-299-8207
In stock
NSN: 5331-01-299-8207
FSC Code: 5331
MPN: A100SR8

5331-01-308-4240 (A100SR-8/805367-ITEM)

NIIN: 01-308-4240
In stock
NSN: 5331-01-308-4240
FSC Code: 5331
MPN: A100SR8805367ITEM

5331-01-300-2566 (A100DA-ITEM)

NIIN: 01-300-2566
In stock
NSN: 5331-01-300-2566
FSC Code: 5331
MPN: A100DAITEM

5331-01-300-2567 (A100SR-8)

NIIN: 01-300-2567
In stock
NSN: 5331-01-300-2567
FSC Code: 5331
MPN: A100SR8

5331-01-308-4239 (A100DA/805366-ITEM)

NIIN: 01-308-4239
In stock
NSN: 5331-01-308-4239
FSC Code: 5331
MPN: A100DA805366ITEM

5331-01-299-8206 (A100DA-ITEM)

NIIN: 01-299-8206
In stock
NSN: 5331-01-299-8206
FSC Code: 5331
MPN: A100DAITEM

5331-00-599-0725 (A10097)

NIIN: 00-599-0725
In stock
NSN: 5331-00-599-0725
FSC Code: 5331
MPN: A10097

5331-01-274-3108 (A1008X114)

NIIN: 01-274-3108
In stock
NSN: 5331-01-274-3108
FSC Code: 5331
MPN: A1008X114

5331-00-975-9553 (A100573)

NIIN: 00-975-9553
In stock
NSN: 5331-00-975-9553
FSC Code: 5331
MPN: A100573

5331-00-452-5039 (A0N097143-01)

NIIN: 00-452-5039
In stock
NSN: 5331-00-452-5039
FSC Code: 5331
MPN: A0N09714301

5331-01-324-2530 (A0JNB25025E)

NIIN: 01-324-2530
In stock
NSN: 5331-01-324-2530
FSC Code: 5331
MPN: A0JNB25025E

5331-01-316-5147 (A0JNB25025E-14-10)

NIIN: 01-316-5147
In stock
NSN: 5331-01-316-5147
FSC Code: 5331
MPN: A0JNB25025E1410

5331-00-450-5445 (A0E1-521-1913575PC36)

NIIN: 00-450-5445
In stock
NSN: 5331-00-450-5445
FSC Code: 5331
MPN: A0E15211913575PC36

5331-01-491-3624 (52D382-7)

NIIN: 01-491-3624
In stock
NSN: 5331-01-491-3624
FSC Code: 5331
MPN: 52D3827

5331-01-432-3083 (AN-4.0-52-Y)

NIIN: 01-432-3083
In stock
NSN: 5331-01-432-3083
FSC Code: 5331
MPN: AN4052Y

5331-01-489-5625 (52-B-9634-6)

NIIN: 01-489-5625
In stock
NSN: 5331-01-489-5625
FSC Code: 5331
MPN: 52B96346

5331-01-489-5624 (52-B-9634-9)

NIIN: 01-489-5624
In stock
NSN: 5331-01-489-5624
FSC Code: 5331
MPN: 52B96349

5331-01-526-2283 (853-09826-000)

NIIN: 01-526-2283
In stock
NSN: 5331-01-526-2283
FSC Code: 5331
MPN: 85309826000

5331-01-536-9310 (5-273N674-70)

NIIN: 01-536-9310
In stock
NSN: 5331-01-536-9310
FSC Code: 5331
MPN: 5273N67470

5331-00-393-4053 (A06689.040.366)

NIIN: 00-393-4053
In stock
NSN: 5331-00-393-4053
FSC Code: 5331
MPN: A06689040366

5331-01-271-4303 (A06111)

NIIN: 01-271-4303
In stock
NSN: 5331-01-271-4303
FSC Code: 5331
MPN: A06111

5331-01-298-8055 (A04.15-34)

NIIN: 01-298-8055
In stock
NSN: 5331-01-298-8055
FSC Code: 5331
MPN: A041534

5331-01-155-7431 (A0365-14)

NIIN: 01-155-7431
In stock
NSN: 5331-01-155-7431
FSC Code: 5331
MPN: A036514

5331-00-623-0366 (A028084)

NIIN: 00-623-0366
In stock
NSN: 5331-00-623-0366
FSC Code: 5331
MPN: A028084

5331-00-850-5207 (A02-326)

NIIN: 00-850-5207
In stock
NSN: 5331-00-850-5207
FSC Code: 5331
MPN: A02326

5331-00-075-3291 (A02-339VA)

NIIN: 00-075-3291
In stock
NSN: 5331-00-075-3291
FSC Code: 5331
MPN: A02339VA

5331-00-788-6039 (A02-318)

NIIN: 00-788-6039
In stock
NSN: 5331-00-788-6039
FSC Code: 5331
MPN: A02318

5331-00-551-4203 (A02-311)

NIIN: 00-551-4203
In stock
NSN: 5331-00-551-4203
FSC Code: 5331
MPN: A02311

5331-00-105-6874 (A02-312VA)

NIIN: 00-105-6874
In stock
NSN: 5331-00-105-6874
FSC Code: 5331
MPN: A02312VA