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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.

5331-01-475-7832 (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

5331-01-420-7783 (2-261E0515-80)

NIIN: 01-420-7783
In stock
NSN: 5331-01-420-7783
FSC Code: 5331
MPN: 2261E051580

5331-01-543-3408 (22610-221)

NIIN: 01-543-3408
In stock
NSN: 5331-01-543-3408
FSC Code: 5331
MPN: 22610221

5331-01-495-2700 (22610-224)

NIIN: 01-495-2700
In stock
NSN: 5331-01-495-2700
FSC Code: 5331
MPN: 22610224

5331-01-570-8194 (22610-112)

NIIN: 01-570-8194
In stock
NSN: 5331-01-570-8194
FSC Code: 5331
MPN: 22610112

5331-01-400-5859 (947J241ITEM60)

NIIN: 01-400-5859
In stock
NSN: 5331-01-400-5859
FSC Code: 5331
MPN: 947J241ITEM60

5331-01-433-1502 (2-260-C557-70)

NIIN: 01-433-1502
In stock
NSN: 5331-01-433-1502
FSC Code: 5331
MPN: 2260C55770

5331-12-344-2617 (225X12MMN429)

NIIN: 12-344-2617
In stock
NSN: 5331-12-344-2617
FSC Code: 5331
MPN: 225X12MMN429

5331-01-512-0629 (CP031A260D3)

NIIN: 01-512-0629
In stock
NSN: 5331-01-512-0629
FSC Code: 5331
MPN: CP031A260D3

5331-00-342-6100 (600-04-104)

NIIN: 00-342-6100
In stock
NSN: 5331-00-342-6100
FSC Code: 5331
MPN: 60004104

5331-00-349-5687 (600-04-215)

NIIN: 00-349-5687
In stock
NSN: 5331-00-349-5687
FSC Code: 5331
MPN: 60004215

5331-01-186-7536 (600-0256PC32)

NIIN: 01-186-7536
In stock
NSN: 5331-01-186-7536
FSC Code: 5331
MPN: 6000256PC32

5331-01-381-4008 (2-259A)

NIIN: 01-381-4008
In stock
NSN: 5331-01-381-4008
FSC Code: 5331
MPN: 2259A

5331-01-391-9843 (2-259-B1167-80)

NIIN: 01-391-9843
In stock
NSN: 5331-01-391-9843
FSC Code: 5331
MPN: 2259B116780

5331-01-124-5718 (600-0169PC32)

NIIN: 01-124-5718
In stock
NSN: 5331-01-124-5718
FSC Code: 5331
MPN: 6000169PC32

5331-01-526-7706 (2-258N0525-60)

NIIN: 01-526-7706
In stock
NSN: 5331-01-526-7706
FSC Code: 5331
MPN: 2258N052560

5331-01-442-5489 (2-258-N545-40)

NIIN: 01-442-5489
In stock
NSN: 5331-01-442-5489
FSC Code: 5331
MPN: 2258N54540