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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.

5331-01-478-7180 (M83485/1-003)

NIIN: 01-478-7180
In stock
NSN: 5331-01-478-7180
FSC Code: 5331
MPN: M834851003

5331-01-412-4522 (M83485/1-044)

NIIN: 01-412-4522
In stock
NSN: 5331-01-412-4522
FSC Code: 5331
MPN: M834851044

5331-01-418-8601 (SAE-AS83461/1)

NIIN: 01-418-8601
In stock
NSN: 5331-01-418-8601
FSC Code: 5331
MPN: SAEAS834611

5331-01-480-1778 (MIL-R-83485/1)

NIIN: 01-480-1778
In stock
NSN: 5331-01-480-1778
FSC Code: 5331
MPN: MILR834851

5331-01-474-2050 (MIL-P-83461/1)

NIIN: 01-474-2050
In stock
NSN: 5331-01-474-2050
FSC Code: 5331
MPN: MILP834611

5331-01-477-7364 (M83485/1-139)

NIIN: 01-477-7364
In stock
NSN: 5331-01-477-7364
FSC Code: 5331
MPN: M834851139

5331-01-480-7200 (MIL-P-83461/1-267)

NIIN: 01-480-7200
In stock
NSN: 5331-01-480-7200
FSC Code: 5331
MPN: MILP834611267

5331-01-485-6437 (M83485/1-149)

NIIN: 01-485-6437
In stock
NSN: 5331-01-485-6437
FSC Code: 5331
MPN: M834851149

5331-01-485-6427 (M83485/1-041)

NIIN: 01-485-6427
In stock
NSN: 5331-01-485-6427
FSC Code: 5331
MPN: M834851041

5331-01-477-7384 (M83485/1-133)

NIIN: 01-477-7384
In stock
NSN: 5331-01-477-7384
FSC Code: 5331
MPN: M834851133

5331-01-480-1813 (M83485/1-132)

NIIN: 01-480-1813
In stock
NSN: 5331-01-480-1813
FSC Code: 5331
MPN: M834851132

5331-01-418-3420 (SAE-AS83461/1)

NIIN: 01-418-3420
In stock
NSN: 5331-01-418-3420
FSC Code: 5331
MPN: SAEAS834611

5331-01-551-1236 (SAE-AS83461/1)

NIIN: 01-551-1236
In stock
NSN: 5331-01-551-1236
FSC Code: 5331
MPN: SAEAS834611

5331-01-503-6160 (SAE-AS83461/1)

NIIN: 01-503-6160
In stock
NSN: 5331-01-503-6160
FSC Code: 5331
MPN: SAEAS834611

5331-01-479-2868 (MIL-P-83461/1-261)

NIIN: 01-479-2868
In stock
NSN: 5331-01-479-2868
FSC Code: 5331
MPN: MILP834611261

5331-01-419-8358 (SAE-AS83461/2)

NIIN: 01-419-8358
In stock
NSN: 5331-01-419-8358
FSC Code: 5331
MPN: SAEAS834612

5331-01-494-2256 (SAE-AS83461/1)

NIIN: 01-494-2256
In stock
NSN: 5331-01-494-2256
FSC Code: 5331
MPN: SAEAS834611

5331-01-551-1226 (SAE-AS83461/1)

NIIN: 01-551-1226
In stock
NSN: 5331-01-551-1226
FSC Code: 5331
MPN: SAEAS834611

5331-01-472-4087 (M83461/1-426)

NIIN: 01-472-4087
In stock
NSN: 5331-01-472-4087
FSC Code: 5331
MPN: M834611426

5331-01-417-6841 (M83461/1-232)

NIIN: 01-417-6841
In stock
NSN: 5331-01-417-6841
FSC Code: 5331
MPN: M834611232

5331-01-533-0800 (M83461/1-904)

NIIN: 01-533-0800
In stock
NSN: 5331-01-533-0800
FSC Code: 5331
MPN: M834611904

5331-01-418-2978 (M83461/1-378)

NIIN: 01-418-2978
In stock
NSN: 5331-01-418-2978
FSC Code: 5331
MPN: M834611378

5331-01-472-2301 (SAE-AS83461/1)

NIIN: 01-472-2301
In stock
NSN: 5331-01-472-2301
FSC Code: 5331
MPN: SAEAS834611

5331-01-367-3645 (SAE-AS83461/1)

NIIN: 01-367-3645
In stock
NSN: 5331-01-367-3645
FSC Code: 5331
MPN: SAEAS834611

5331-01-516-2648 (SAE-AS83461/1)

NIIN: 01-516-2648
In stock
NSN: 5331-01-516-2648
FSC Code: 5331
MPN: SAEAS834611

5331-01-548-5600 (SAE-AS83461/1)

NIIN: 01-548-5600
In stock
NSN: 5331-01-548-5600
FSC Code: 5331
MPN: SAEAS834611

5331-01-556-4360 (SAE-AS83461/1)

NIIN: 01-556-4360
In stock
NSN: 5331-01-556-4360
FSC Code: 5331
MPN: SAEAS834611

5331-01-423-0963 (M83461/1-201)

NIIN: 01-423-0963
In stock
NSN: 5331-01-423-0963
FSC Code: 5331
MPN: M834611201

5331-01-385-9393 (M83461/1-006)

NIIN: 01-385-9393
In stock
NSN: 5331-01-385-9393
FSC Code: 5331
MPN: M834611006

5331-01-458-4957 (SAE-AS83461/1)

NIIN: 01-458-4957
In stock
NSN: 5331-01-458-4957
FSC Code: 5331
MPN: SAEAS834611

5331-01-471-6112 (SAE-AS83461/1)

NIIN: 01-471-6112
In stock
NSN: 5331-01-471-6112
FSC Code: 5331
MPN: SAEAS834611

5331-01-351-8788 (MIL-P-83461/1)

NIIN: 01-351-8788
In stock
NSN: 5331-01-351-8788
FSC Code: 5331
MPN: MILP834611

5331-01-482-0695 (MIL-P-83461/1)

NIIN: 01-482-0695
In stock
NSN: 5331-01-482-0695
FSC Code: 5331
MPN: MILP834611

5331-01-478-7699 (SAE-AS83461/1)

NIIN: 01-478-7699
In stock
NSN: 5331-01-478-7699
FSC Code: 5331
MPN: SAEAS834611

5331-01-553-7063 (SAE-AS83461/1)

NIIN: 01-553-7063
In stock
NSN: 5331-01-553-7063
FSC Code: 5331
MPN: SAEAS834611

5331-01-506-2563 (M83461/1-131TVQ)

NIIN: 01-506-2563
In stock
NSN: 5331-01-506-2563
FSC Code: 5331
MPN: M834611131TVQ

5331-01-527-3377 (SAE-AS83461/1)

NIIN: 01-527-3377
In stock
NSN: 5331-01-527-3377
FSC Code: 5331
MPN: SAEAS834611

5331-01-416-7210 (SAE-AS83461/1)

NIIN: 01-416-7210
In stock
NSN: 5331-01-416-7210
FSC Code: 5331
MPN: SAEAS834611

5331-01-506-2565 (M83461/1-125TVQ)

NIIN: 01-506-2565
In stock
NSN: 5331-01-506-2565
FSC Code: 5331
MPN: M834611125TVQ

5331-01-525-4255 (M83412/1-011)

NIIN: 01-525-4255
In stock
NSN: 5331-01-525-4255
FSC Code: 5331
MPN: M834121011

5331-01-412-0821 (M83412/1-235)

NIIN: 01-412-0821
In stock
NSN: 5331-01-412-0821
FSC Code: 5331
MPN: M834121235

5331-01-532-7685 (M83412/1-904)

NIIN: 01-532-7685
In stock
NSN: 5331-01-532-7685
FSC Code: 5331
MPN: M834121904

5331-01-532-7693 (M83412/1-009)

NIIN: 01-532-7693
In stock
NSN: 5331-01-532-7693
FSC Code: 5331
MPN: M834121009

5331-01-468-4818 (MIL-R-83248/2)

NIIN: 01-468-4818
In stock
NSN: 5331-01-468-4818
FSC Code: 5331
MPN: MILR832482

5331-01-488-6525 (M83248-011)

NIIN: 01-488-6525
In stock
NSN: 5331-01-488-6525
FSC Code: 5331
MPN: M83248011

5331-01-451-1042 (M83248/2-919)

NIIN: 01-451-1042
In stock
NSN: 5331-01-451-1042
FSC Code: 5331
MPN: M832482919

5331-01-417-9652 (M83248/2-908)

NIIN: 01-417-9652
In stock
NSN: 5331-01-417-9652
FSC Code: 5331
MPN: M832482908

5331-01-436-6191 (MIL-R-83248/2)

NIIN: 01-436-6191
In stock
NSN: 5331-01-436-6191
FSC Code: 5331
MPN: MILR832482