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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.

5331-01-313-8618 (231123-4)

NIIN: 01-313-8618
In stock
NSN: 5331-01-313-8618
FSC Code: 5331
MPN: 2311234

5331-01-202-6720 (2-311216)

NIIN: 01-202-6720
In stock
NSN: 5331-01-202-6720
FSC Code: 5331
MPN: 2311216

5331-01-454-4339 (00-514504)

NIIN: 01-454-4339
In stock
NSN: 5331-01-454-4339
FSC Code: 5331
MPN: 00514504

5331-01-151-8791 (23114-99-0332)

NIIN: 01-151-8791
In stock
NSN: 5331-01-151-8791
FSC Code: 5331
MPN: 23114990332

5331-01-455-9808 (00-514514)

NIIN: 01-455-9808
In stock
NSN: 5331-01-455-9808
FSC Code: 5331
MPN: 00514514

5331-01-213-9967 (2311F4B)

NIIN: 01-213-9967
In stock
NSN: 5331-01-213-9967
FSC Code: 5331
MPN: 2311F4B

5331-00-194-3745 (2311F4B)

NIIN: 00-194-3745
In stock
NSN: 5331-00-194-3745
FSC Code: 5331
MPN: 2311F4B

5331-01-249-1637 (231-27-1051)

NIIN: 01-249-1637
In stock
NSN: 5331-01-249-1637
FSC Code: 5331
MPN: 231271051

5331-01-269-8573 (231-27-1052)

NIIN: 01-269-8573
In stock
NSN: 5331-01-269-8573
FSC Code: 5331
MPN: 231271052

5331-01-205-3476 (231-27-1159)

NIIN: 01-205-3476
In stock
NSN: 5331-01-205-3476
FSC Code: 5331
MPN: 231271159

5331-14-344-1848 (00528B7800A20B8)

NIIN: 14-344-1848
In stock
NSN: 5331-14-344-1848
FSC Code: 5331
MPN: 00528B7800A20B8

5331-00-914-3320 (2-312S1032-70)

NIIN: 00-914-3320
In stock
NSN: 5331-00-914-3320
FSC Code: 5331
MPN: 2312S103270

5331-01-235-3185 (2-313)

NIIN: 01-235-3185
In stock
NSN: 5331-01-235-3185
FSC Code: 5331
MPN: 2313

5331-00-425-0662 (2313-0188)

NIIN: 00-425-0662
In stock
NSN: 5331-00-425-0662
FSC Code: 5331
MPN: 23130188

5331-01-005-3706 (2-312V0747-75)

NIIN: 01-005-3706
In stock
NSN: 5331-01-005-3706
FSC Code: 5331
MPN: 2312V074775

5331-01-398-1331 (00539H)

NIIN: 01-398-1331
In stock
NSN: 5331-01-398-1331
FSC Code: 5331
MPN: 00539H

5331-00-399-1076 (2313-0228)

NIIN: 00-399-1076
In stock
NSN: 5331-00-399-1076
FSC Code: 5331
MPN: 23130228

5331-01-392-1711 (00543K)

NIIN: 01-392-1711
In stock
NSN: 5331-01-392-1711
FSC Code: 5331
MPN: 00543K

5331-00-399-1077 (2313-1168)

NIIN: 00-399-1077
In stock
NSN: 5331-00-399-1077
FSC Code: 5331
MPN: 23131168

5331-14-232-6268 (00550C0000A21A7)

NIIN: 14-232-6268
In stock
NSN: 5331-14-232-6268
FSC Code: 5331
MPN: 00550C0000A21A7

5331-01-203-5317 (2-313-S604-70)

NIIN: 01-203-5317
In stock
NSN: 5331-01-203-5317
FSC Code: 5331
MPN: 2313S60470

5331-01-285-0546 (2-313N304-75)

NIIN: 01-285-0546
In stock
NSN: 5331-01-285-0546
FSC Code: 5331
MPN: 2313N30475

5331-01-005-4042 (2-313V0747-75)

NIIN: 01-005-4042
In stock
NSN: 5331-01-005-4042
FSC Code: 5331
MPN: 2313V074775

5331-01-243-3778 (2-314)

NIIN: 01-243-3778
In stock
NSN: 5331-01-243-3778
FSC Code: 5331
MPN: 2314

5331-01-312-1112 (231-4087)

NIIN: 01-312-1112
In stock
NSN: 5331-01-312-1112
FSC Code: 5331
MPN: 2314087

5331-01-011-7059 (2314-1127)

NIIN: 01-011-7059
In stock
NSN: 5331-01-011-7059
FSC Code: 5331
MPN: 23141127

5331-14-382-6560 (00570B9000A31B5)

NIIN: 14-382-6560
In stock
NSN: 5331-14-382-6560
FSC Code: 5331
MPN: 00570B9000A31B5

5331-01-005-4043 (2-314V0747-75)

NIIN: 01-005-4043
In stock
NSN: 5331-01-005-4043
FSC Code: 5331
MPN: 2314V074775

5331-01-310-9956 (2315-04)

NIIN: 01-310-9956
In stock
NSN: 5331-01-310-9956
FSC Code: 5331
MPN: 231504

5331-00-984-3772 (2314-9127)

NIIN: 00-984-3772
In stock
NSN: 5331-00-984-3772
FSC Code: 5331
MPN: 23149127

5331-01-306-8626 (2315-12)

NIIN: 01-306-8626
In stock
NSN: 5331-01-306-8626
FSC Code: 5331
MPN: 231512

5331-01-186-7534 (2315-37)

NIIN: 01-186-7534
In stock
NSN: 5331-01-186-7534
FSC Code: 5331
MPN: 231537

5331-01-210-4805 (2315-24)

NIIN: 01-210-4805
In stock
NSN: 5331-01-210-4805
FSC Code: 5331
MPN: 231524

5331-01-422-2222 (25147-6IN)

NIIN: 01-422-2222
In stock
NSN: 5331-01-422-2222
FSC Code: 5331
MPN: 251476IN

5331-01-005-4044 (2-315V0747-75)

NIIN: 01-005-4044
In stock
NSN: 5331-01-005-4044
FSC Code: 5331
MPN: 2315V074775

5331-01-331-7151 (2-316)

NIIN: 01-331-7151
In stock
NSN: 5331-01-331-7151
FSC Code: 5331
MPN: 2316

5331-00-182-3578 (2-316)

NIIN: 00-182-3578
In stock
NSN: 5331-00-182-3578
FSC Code: 5331
MPN: 2316

5331-01-162-7785 (2316-52)

NIIN: 01-162-7785
In stock
NSN: 5331-01-162-7785
FSC Code: 5331
MPN: 231652

5331-01-454-7779 (0060-05)

NIIN: 01-454-7779
In stock
NSN: 5331-01-454-7779
FSC Code: 5331
MPN: 006005

5331-14-040-3810 (00600D0000A21A7)

NIIN: 14-040-3810
In stock
NSN: 5331-14-040-3810
FSC Code: 5331
MPN: 00600D0000A21A7

5331-14-379-8272 (00600C5000A23B7)

NIIN: 14-379-8272
In stock
NSN: 5331-14-379-8272
FSC Code: 5331
MPN: 00600C5000A23B7

5331-01-454-6615 (0060-17)

NIIN: 01-454-6615
In stock
NSN: 5331-01-454-6615
FSC Code: 5331
MPN: 006017

5331-01-005-4046 (2-316V0747-75)

NIIN: 01-005-4046
In stock
NSN: 5331-01-005-4046
FSC Code: 5331
MPN: 2316V074775

5331-01-454-7786 (0060-53)

NIIN: 01-454-7786
In stock
NSN: 5331-01-454-7786
FSC Code: 5331
MPN: 006053

5331-01-454-7763 (0060-54)

NIIN: 01-454-7763
In stock
NSN: 5331-01-454-7763
FSC Code: 5331
MPN: 006054

5331-00-828-9787 (2-316S1032-70)

NIIN: 00-828-9787
In stock
NSN: 5331-00-828-9787
FSC Code: 5331
MPN: 2316S103270

5331-14-389-1171 (6-07X1-78-80V013A)

NIIN: 14-389-1171
In stock
NSN: 5331-14-389-1171
FSC Code: 5331
MPN: 607X17880V013A

5331-01-454-7785 (0060-90)

NIIN: 01-454-7785
In stock
NSN: 5331-01-454-7785
FSC Code: 5331
MPN: 006090