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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.

5331-01-250-0156 (60096136-010)

NIIN: 01-250-0156
In stock
NSN: 5331-01-250-0156
FSC Code: 5331
MPN: 60096136010

5331-01-376-5517 (2-279B612-70)

NIIN: 01-376-5517
In stock
NSN: 5331-01-376-5517
FSC Code: 5331
MPN: 2279B61270

5331-01-492-8427 (515-AV-MMA-030)

NIIN: 01-492-8427
In stock
NSN: 5331-01-492-8427
FSC Code: 5331
MPN: 515AVMMA030

5331-01-398-8794 (2-277-V884-75)

NIIN: 01-398-8794
In stock
NSN: 5331-01-398-8794
FSC Code: 5331
MPN: 2277V88475

5331-01-020-9707 (60069132-112)

NIIN: 01-020-9707
In stock
NSN: 5331-01-020-9707
FSC Code: 5331
MPN: 60069132112

5331-01-289-4935 (6005-V-006)

NIIN: 01-289-4935
In stock
NSN: 5331-01-289-4935
FSC Code: 5331
MPN: 6005V006

5331-01-290-6087 (6005-V-008)

NIIN: 01-290-6087
In stock
NSN: 5331-01-290-6087
FSC Code: 5331
MPN: 6005V008

5331-01-396-0470 (2-276N674-70)

NIIN: 01-396-0470
In stock
NSN: 5331-01-396-0470
FSC Code: 5331
MPN: 2276N67470

5331-01-476-8921 (2-275N0525-60)

NIIN: 01-476-8921
In stock
NSN: 5331-01-476-8921
FSC Code: 5331
MPN: 2275N052560

5331-01-520-7825 (2-275E530-80)

NIIN: 01-520-7825
In stock
NSN: 5331-01-520-7825
FSC Code: 5331
MPN: 2275E53080

5331-01-508-7239 (2-275N552-90)

NIIN: 01-508-7239
In stock
NSN: 5331-01-508-7239
FSC Code: 5331
MPN: 2275N55290

5331-01-572-2243 (22749-333)

NIIN: 01-572-2243
In stock
NSN: 5331-01-572-2243
FSC Code: 5331
MPN: 22749333

5331-01-554-5555 (2-275E540-80)

NIIN: 01-554-5555
In stock
NSN: 5331-01-554-5555
FSC Code: 5331
MPN: 2275E54080

5331-01-572-2095 (22749-252)

NIIN: 01-572-2095
In stock
NSN: 5331-01-572-2095
FSC Code: 5331
MPN: 22749252

5331-00-530-4459 (60048-16)

NIIN: 00-530-4459
In stock
NSN: 5331-00-530-4459
FSC Code: 5331
MPN: 6004816

5331-01-376-9604 (22749-151)

NIIN: 01-376-9604
In stock
NSN: 5331-01-376-9604
FSC Code: 5331
MPN: 22749151

5331-01-475-7832 (22749-123)

NIIN: 01-475-7832
In stock
NSN: 5331-01-475-7832
FSC Code: 5331
MPN: 22749123

5331-01-509-1777 (2-274)

NIIN: 01-509-1777
In stock
NSN: 5331-01-509-1777
FSC Code: 5331
MPN: 2274

5331-00-251-0502 (60-04-309)

NIIN: 00-251-0502
In stock
NSN: 5331-00-251-0502
FSC Code: 5331
MPN: 6004309

5331-00-395-0424 (60-04-202)

NIIN: 00-395-0424
In stock
NSN: 5331-00-395-0424
FSC Code: 5331
MPN: 6004202

5331-01-444-6670 (2-272N674-70)

NIIN: 01-444-6670
In stock
NSN: 5331-01-444-6670
FSC Code: 5331
MPN: 2272N67470

5331-00-053-2070 (600350-284)

NIIN: 00-053-2070
In stock
NSN: 5331-00-053-2070
FSC Code: 5331
MPN: 600350284

5331-01-519-3276 (2-271N0674-70)

NIIN: 01-519-3276
In stock
NSN: 5331-01-519-3276
FSC Code: 5331
MPN: 2271N067470

5331-01-558-3339 (E603-70)

NIIN: 01-558-3339
In stock
NSN: 5331-01-558-3339
FSC Code: 5331
MPN: E60370

5331-01-459-3566 (22710-00)

NIIN: 01-459-3566
In stock
NSN: 5331-01-459-3566
FSC Code: 5331
MPN: 2271000

5331-01-483-0213 (2-270)

NIIN: 01-483-0213
In stock
NSN: 5331-01-483-0213
FSC Code: 5331
MPN: 2270

5331-01-343-2665 (DBM60/44X18)

NIIN: 01-343-2665
In stock
NSN: 5331-01-343-2665
FSC Code: 5331
MPN: DBM6044X18

5331-01-547-0422 (2-267VM835-75)

NIIN: 01-547-0422
In stock
NSN: 5331-01-547-0422
FSC Code: 5331
MPN: 2267VM83575

5331-01-476-8920 (2-267N0525-60)

NIIN: 01-476-8920
In stock
NSN: 5331-01-476-8920
FSC Code: 5331
MPN: 2267N052560

5331-00-604-1431 (600-19-142)

NIIN: 00-604-1431
In stock
NSN: 5331-00-604-1431
FSC Code: 5331
MPN: 60019142

5331-01-473-1584 (MIL-DTL-25988/3)

NIIN: 01-473-1584
In stock
NSN: 5331-01-473-1584
FSC Code: 5331
MPN: MILDTL259883

5331-01-526-7716 (2-265N0525-60)

NIIN: 01-526-7716
In stock
NSN: 5331-01-526-7716
FSC Code: 5331
MPN: 2265N052560

5331-01-321-4342 (600-150)

NIIN: 01-321-4342
In stock
NSN: 5331-01-321-4342
FSC Code: 5331
MPN: 600150

5331-01-246-7472 (60013-85)

NIIN: 01-246-7472
In stock
NSN: 5331-01-246-7472
FSC Code: 5331
MPN: 6001385

5331-01-512-1691 (S9515-AL-MMA-010)

NIIN: 01-512-1691
In stock
NSN: 5331-01-512-1691
FSC Code: 5331
MPN: S9515ALMMA010

5331-01-533-3254 (22650-045)

NIIN: 01-533-3254
In stock
NSN: 5331-01-533-3254
FSC Code: 5331
MPN: 22650045

5331-01-382-0168 (2-264V709-90)

NIIN: 01-382-0168
In stock
NSN: 5331-01-382-0168
FSC Code: 5331
MPN: 2264V70990

5331-01-456-5716 (N0299-50 2265N029950)

NIIN: 01-456-5716
In stock
NSN: 5331-01-456-5716
FSC Code: 5331
MPN: N0299502265N029950

5331-01-494-9953 (514-6985565-15)

NIIN: 01-494-9953
In stock
NSN: 5331-01-494-9953
FSC Code: 5331
MPN: 514698556515

5331-01-529-6631 (FIND NO. 95 7385926FINDNO95)

NIIN: 01-529-6631
In stock
NSN: 5331-01-529-6631
FSC Code: 5331
MPN: FINDNO957385926FINDNO95

5331-01-564-1388 (226402-2)

NIIN: 01-564-1388
In stock
NSN: 5331-01-564-1388
FSC Code: 5331
MPN: 2264022

5331-01-562-8818 (226-3571)

NIIN: 01-562-8818
In stock
NSN: 5331-01-562-8818
FSC Code: 5331
MPN: 2263571

5331-01-414-3043 (2263-01)

NIIN: 01-414-3043
In stock
NSN: 5331-01-414-3043
FSC Code: 5331
MPN: 226301

5331-01-362-3404 (22623-21372-12)

NIIN: 01-362-3404
In stock
NSN: 5331-01-362-3404
FSC Code: 5331
MPN: 226232137212

5331-01-362-3405 (22623-21372-13)

NIIN: 01-362-3405
In stock
NSN: 5331-01-362-3405
FSC Code: 5331
MPN: 226232137213

5331-01-476-8919 (2-261N0525-60)

NIIN: 01-476-8919
In stock
NSN: 5331-01-476-8919
FSC Code: 5331
MPN: 2261N052560

5331-01-457-5306 (2-261C1124-70)

NIIN: 01-457-5306
In stock
NSN: 5331-01-457-5306
FSC Code: 5331
MPN: 2261C112470

5331-01-382-7040 (2-261E515-80)

NIIN: 01-382-7040
In stock
NSN: 5331-01-382-7040
FSC Code: 5331
MPN: 2261E51580