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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.

5331-01-513-7665 (2-149E515-80)

NIIN: 01-513-7665
In stock
NSN: 5331-01-513-7665
FSC Code: 5331
MPN: 2149E51580

5331-01-469-8237 (DJP 112)

NIIN: 01-469-8237
In stock
NSN: 5331-01-469-8237
FSC Code: 5331
MPN: DJP112

5331-01-469-8235 (5P 107)

NIIN: 01-469-8235
In stock
NSN: 5331-01-469-8235
FSC Code: 5331
MPN: 5P107

5331-01-491-4480 (2-023 N0951-75)

NIIN: 01-491-4480
In stock
NSN: 5331-01-491-4480
FSC Code: 5331
MPN: 2023N095175

5331-01-469-8238 (10E 46)

NIIN: 01-469-8238
In stock
NSN: 5331-01-469-8238
FSC Code: 5331
MPN: 10E46

5331-01-502-9302 (N1090 2-216)

NIIN: 01-502-9302
In stock
NSN: 5331-01-502-9302
FSC Code: 5331
MPN: N10902216

5331-01-469-8239 (APG 108)

NIIN: 01-469-8239
In stock
NSN: 5331-01-469-8239
FSC Code: 5331
MPN: APG108

5331-01-469-8244 (CU 351)

NIIN: 01-469-8244
In stock
NSN: 5331-01-469-8244
FSC Code: 5331
MPN: CU351

5331-01-469-8233 (DJP 58)

NIIN: 01-469-8233
In stock
NSN: 5331-01-469-8233
FSC Code: 5331
MPN: DJP58

5331-01-469-8242 (7M 51)

NIIN: 01-469-8242
In stock
NSN: 5331-01-469-8242
FSC Code: 5331
MPN: 7M51

5331-01-469-8234 (DJP 96)

NIIN: 01-469-8234
In stock
NSN: 5331-01-469-8234
FSC Code: 5331
MPN: DJP96

5331-01-469-8240 (2M 199)

NIIN: 01-469-8240
In stock
NSN: 5331-01-469-8240
FSC Code: 5331
MPN: 2M199

5331-01-424-0953 (2743273-1)

NIIN: 01-424-0953
In stock
NSN: 5331-01-424-0953
FSC Code: 5331
MPN: 27432731

5331-01-452-6563 (SMP 37/OR)

NIIN: 01-452-6563
In stock
NSN: 5331-01-452-6563
FSC Code: 5331
MPN: SMP37OR

5331-01-438-9882 (Q4020)

NIIN: 01-438-9882
In stock
NSN: 5331-01-438-9882
FSC Code: 5331
MPN: Q4020

5331-01-411-6372 (0-3-2-28)

NIIN: 01-411-6372
In stock
NSN: 5331-01-411-6372
FSC Code: 5331
MPN: 03228

5331-01-399-4061 (952240-0041)

NIIN: 01-399-4061
In stock
NSN: 5331-01-399-4061
FSC Code: 5331
MPN: 9522400041

5331-01-425-4338 (39131-11)

NIIN: 01-425-4338
In stock
NSN: 5331-01-425-4338
FSC Code: 5331
MPN: 3913111

5331-01-420-8610 (EA00686)

NIIN: 01-420-8610
In stock
NSN: 5331-01-420-8610
FSC Code: 5331
MPN: EA00686

5331-01-417-1475 (M25988/2-239)

NIIN: 01-417-1475
In stock
NSN: 5331-01-417-1475
FSC Code: 5331
MPN: M259882239

5331-01-406-7842 (114132)

NIIN: 01-406-7842
In stock
NSN: 5331-01-406-7842
FSC Code: 5331
MPN: 114132

5331-01-435-0751 (55-144)

NIIN: 01-435-0751
In stock
NSN: 5331-01-435-0751
FSC Code: 5331
MPN: 55144

5331-01-420-8479 (050495A2)

NIIN: 01-420-8479
In stock
NSN: 5331-01-420-8479
FSC Code: 5331
MPN: 050495A2

5331-01-424-6436 (S8990-680)

NIIN: 01-424-6436
In stock
NSN: 5331-01-424-6436
FSC Code: 5331
MPN: S8990680

5331-01-393-0600 (NAS1593-177)

NIIN: 01-393-0600
In stock
NSN: 5331-01-393-0600
FSC Code: 5331
MPN: NAS1593177

5331-01-400-0717 (M25988/1-358)

NIIN: 01-400-0717
In stock
NSN: 5331-01-400-0717
FSC Code: 5331
MPN: M259881358

5331-01-376-6654 (6671)

NIIN: 01-376-6654
In stock
NSN: 5331-01-376-6654
FSC Code: 5331
MPN: 6671

5331-01-375-1587 (6894-0130)

NIIN: 01-375-1587
In stock
NSN: 5331-01-375-1587
FSC Code: 5331
MPN: 68940130

5331-01-385-4521 (2743273-2)

NIIN: 01-385-4521
In stock
NSN: 5331-01-385-4521
FSC Code: 5331
MPN: 27432732

5331-01-375-1584 (6893-0004)

NIIN: 01-375-1584
In stock
NSN: 5331-01-375-1584
FSC Code: 5331
MPN: 68930004

5331-01-385-2254 (92530-04)

NIIN: 01-385-2254
In stock
NSN: 5331-01-385-2254
FSC Code: 5331
MPN: 9253004

5331-01-375-1586 (6894-0014)

NIIN: 01-375-1586
In stock
NSN: 5331-01-375-1586
FSC Code: 5331
MPN: 68940014

5331-01-375-1585 (6893-0012)

NIIN: 01-375-1585
In stock
NSN: 5331-01-375-1585
FSC Code: 5331
MPN: 68930012

5331-01-380-4785 (2134-209)

NIIN: 01-380-4785
In stock
NSN: 5331-01-380-4785
FSC Code: 5331
MPN: 2134209

5331-01-389-3776 (5-140 V747-75)

NIIN: 01-389-3776
In stock
NSN: 5331-01-389-3776
FSC Code: 5331
MPN: 5140V74775

5331-01-382-3974 (306799-00)

NIIN: 01-382-3974
In stock
NSN: 5331-01-382-3974
FSC Code: 5331
MPN: 30679900

5331-01-375-5838 (2-033 S355-75)

NIIN: 01-375-5838
In stock
NSN: 5331-01-375-5838
FSC Code: 5331
MPN: 2033S35575

5331-01-378-1438 (BN-70-141-CD)

NIIN: 01-378-1438
In stock
NSN: 5331-01-378-1438
FSC Code: 5331
MPN: BN70141CD

5331-01-389-0247 (5-157S383-70)

NIIN: 01-389-0247
In stock
NSN: 5331-01-389-0247
FSC Code: 5331
MPN: 5157S38370

5331-01-373-1310 (4006)

NIIN: 01-373-1310
In stock
NSN: 5331-01-373-1310
FSC Code: 5331
MPN: 4006

5331-01-197-0411 (RNG292)

NIIN: 01-197-0411
In stock
NSN: 5331-01-197-0411
FSC Code: 5331
MPN: RNG292

5331-01-136-4972 (6410100)

NIIN: 01-136-4972
In stock
NSN: 5331-01-136-4972
FSC Code: 5331
MPN: 6410100

5331-01-157-5425 (599B)

NIIN: 01-157-5425
In stock
NSN: 5331-01-157-5425
FSC Code: 5331
MPN: 599B

5331-01-032-8063 (A-019SR251-70)

NIIN: 01-032-8063
In stock
NSN: 5331-01-032-8063
FSC Code: 5331
MPN: A019SR25170

5331-01-053-1455 (394625)

NIIN: 01-053-1455
In stock
NSN: 5331-01-053-1455
FSC Code: 5331
MPN: 394625

5331-00-527-8227 (1242419-1)

NIIN: 00-527-8227
In stock
NSN: 5331-00-527-8227
FSC Code: 5331
MPN: 12424191

5331-00-463-3290 (KK71GZ042)

NIIN: 00-463-3290
In stock
NSN: 5331-00-463-3290
FSC Code: 5331
MPN: KK71GZ042

5331-00-557-4468 (0W)

NIIN: 00-557-4468
In stock
NSN: 5331-00-557-4468
FSC Code: 5331
MPN: 0W