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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.

5331-01-155-1780 (2-21404)

NIIN: 01-155-1780
In stock
NSN: 5331-01-155-1780
FSC Code: 5331
MPN: 221404

5331-01-208-2920 (2-214)

NIIN: 01-208-2920
In stock
NSN: 5331-01-208-2920
FSC Code: 5331
MPN: 2214

5331-00-850-7586 (2-213N951-75)

NIIN: 00-850-7586
In stock
NSN: 5331-00-850-7586
FSC Code: 5331
MPN: 2213N95175

5331-00-420-9660 (2-213E515-80)

NIIN: 00-420-9660
In stock
NSN: 5331-00-420-9660
FSC Code: 5331
MPN: 2213E51580

5331-00-768-7689 (2-214-75-068)

NIIN: 00-768-7689
In stock
NSN: 5331-00-768-7689
FSC Code: 5331
MPN: 221475068

5331-00-253-2377 (2-214-E515-5)

NIIN: 00-253-2377
In stock
NSN: 5331-00-253-2377
FSC Code: 5331
MPN: 2214E5155

5331-01-023-3517 (2-214C1124-70)

NIIN: 01-023-3517
In stock
NSN: 5331-01-023-3517
FSC Code: 5331
MPN: 2214C112470

5331-01-101-9484 (2-214E798-70)

NIIN: 01-101-9484
In stock
NSN: 5331-01-101-9484
FSC Code: 5331
MPN: 2214E79870

5331-01-133-3918 (2-214E688-70)

NIIN: 01-133-3918
In stock
NSN: 5331-01-133-3918
FSC Code: 5331
MPN: 2214E68870

5331-01-128-5185 (2-214-E688-70)

NIIN: 01-128-5185
In stock
NSN: 5331-01-128-5185
FSC Code: 5331
MPN: 2214E68870

5331-01-252-0348 (2-214L1223-60)

NIIN: 01-252-0348
In stock
NSN: 5331-01-252-0348
FSC Code: 5331
MPN: 2214L122360

5331-01-285-5905 (2214E810-80)

NIIN: 01-285-5905
In stock
NSN: 5331-01-285-5905
FSC Code: 5331
MPN: 2214E81080

5331-00-008-5325 (2-214N299-5)

NIIN: 00-008-5325
In stock
NSN: 5331-00-008-5325
FSC Code: 5331
MPN: 2214N2995

5331-00-599-6704 (2-214N193-5)

NIIN: 00-599-6704
In stock
NSN: 5331-00-599-6704
FSC Code: 5331
MPN: 2214N1935

5331-00-505-4041 (2-214N552-9)

NIIN: 00-505-4041
In stock
NSN: 5331-00-505-4041
FSC Code: 5331
MPN: 2214N5529

5331-01-116-8112 (2-214N552-9)

NIIN: 01-116-8112
In stock
NSN: 5331-01-116-8112
FSC Code: 5331
MPN: 2214N5529

5331-01-094-4396 (2-214N507-90)

NIIN: 01-094-4396
In stock
NSN: 5331-01-094-4396
FSC Code: 5331
MPN: 2214N50790

5331-01-311-9334 (2-214N506-65)

NIIN: 01-311-9334
In stock
NSN: 5331-01-311-9334
FSC Code: 5331
MPN: 2214N50665

5331-01-210-4792 (2214V747-75)

NIIN: 01-210-4792
In stock
NSN: 5331-01-210-4792
FSC Code: 5331
MPN: 2214V74775

5331-01-096-8823 (2-214V377-9)

NIIN: 01-096-8823
In stock
NSN: 5331-01-096-8823
FSC Code: 5331
MPN: 2214V3779

5331-00-741-0674 (2-214N951-75)

NIIN: 00-741-0674
In stock
NSN: 5331-00-741-0674
FSC Code: 5331
MPN: 2214N95175

5331-01-242-1810 (2-214T)

NIIN: 01-242-1810
In stock
NSN: 5331-01-242-1810
FSC Code: 5331
MPN: 2214T

5331-00-078-3675 (2-214S418-6)

NIIN: 00-078-3675
In stock
NSN: 5331-00-078-3675
FSC Code: 5331
MPN: 2214S4186

5331-01-017-6535 (2-214V-9)

NIIN: 01-017-6535
In stock
NSN: 5331-01-017-6535
FSC Code: 5331
MPN: 2214V9

5331-00-166-8404 (2-215)

NIIN: 00-166-8404
In stock
NSN: 5331-00-166-8404
FSC Code: 5331
MPN: 2215

5331-00-585-4500 (2-215)

NIIN: 00-585-4500
In stock
NSN: 5331-00-585-4500
FSC Code: 5331
MPN: 2215

5331-00-117-5290 (22-150-01015)

NIIN: 00-117-5290
In stock
NSN: 5331-00-117-5290
FSC Code: 5331
MPN: 2215001015

5331-01-090-1552 (2-215)

NIIN: 01-090-1552
In stock
NSN: 5331-01-090-1552
FSC Code: 5331
MPN: 2215

5331-00-117-5292 (22-150-0991)

NIIN: 00-117-5292
In stock
NSN: 5331-00-117-5292
FSC Code: 5331
MPN: 221500991

5331-01-474-5857 (69790400219)

NIIN: 01-474-5857
In stock
NSN: 5331-01-474-5857
FSC Code: 5331
MPN: 69790400219

5331-00-463-0327 (2-215)

NIIN: 00-463-0327
In stock
NSN: 5331-00-463-0327
FSC Code: 5331
MPN: 2215

5331-00-435-5280 (2-215E515-8)

NIIN: 00-435-5280
In stock
NSN: 5331-00-435-5280
FSC Code: 5331
MPN: 2215E5158

5331-00-253-1234 (2-215E540-80)

NIIN: 00-253-1234
In stock
NSN: 5331-00-253-1234
FSC Code: 5331
MPN: 2215E54080

5331-01-264-5936 (2-215F953-70)

NIIN: 01-264-5936
In stock
NSN: 5331-01-264-5936
FSC Code: 5331
MPN: 2215F95370

5331-01-264-1493 (2-215N683-7)

NIIN: 01-264-1493
In stock
NSN: 5331-01-264-1493
FSC Code: 5331
MPN: 2215N6837

5331-01-116-3109 (2-215N219-70)

NIIN: 01-116-3109
In stock
NSN: 5331-01-116-3109
FSC Code: 5331
MPN: 2215N21970

5331-00-913-8878 (2-215S1032-70)

NIIN: 00-913-8878
In stock
NSN: 5331-00-913-8878
FSC Code: 5331
MPN: 2215S103270

5331-01-331-2065 (2-216)

NIIN: 01-331-2065
In stock
NSN: 5331-01-331-2065
FSC Code: 5331
MPN: 2216

5331-00-531-3714 (2-216)

NIIN: 00-531-3714
In stock
NSN: 5331-00-531-3714
FSC Code: 5331
MPN: 2216

5331-00-776-7695 (2-216)

NIIN: 00-776-7695
In stock
NSN: 5331-00-776-7695
FSC Code: 5331
MPN: 2216

5331-00-618-2513 (2-216)

NIIN: 00-618-2513
In stock
NSN: 5331-00-618-2513
FSC Code: 5331
MPN: 2216

5331-01-206-6125 (2-216)

NIIN: 01-206-6125
In stock
NSN: 5331-01-206-6125
FSC Code: 5331
MPN: 2216

5331-00-973-3683 (2-216-76-128)

NIIN: 00-973-3683
In stock
NSN: 5331-00-973-3683
FSC Code: 5331
MPN: 221676128

5331-00-057-3893 (2-216B278-7)

NIIN: 00-057-3893
In stock
NSN: 5331-00-057-3893
FSC Code: 5331
MPN: 2216B2787

5331-01-124-9021 (2-216C147-70)

NIIN: 01-124-9021
In stock
NSN: 5331-01-124-9021
FSC Code: 5331
MPN: 2216C14770

5331-00-124-0430 (2-216E515-8)

NIIN: 00-124-0430
In stock
NSN: 5331-00-124-0430
FSC Code: 5331
MPN: 2216E5158

5331-00-421-9705 (2-216E540-80)

NIIN: 00-421-9705
In stock
NSN: 5331-00-421-9705
FSC Code: 5331
MPN: 2216E54080

5331-01-013-3028 (2-216C557-70)

NIIN: 01-013-3028
In stock
NSN: 5331-01-013-3028
FSC Code: 5331
MPN: 2216C55770