Skip to content

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.

5331-12-198-9628 (04250937205351)

NIIN: 12-198-9628
In stock
NSN: 5331-12-198-9628
FSC Code: 5331
MPN: 04250937205351

5331-00-292-7559 (2-233)

NIIN: 00-292-7559
In stock
NSN: 5331-00-292-7559
FSC Code: 5331
MPN: 2233

5331-00-185-0081 (2-233)

NIIN: 00-185-0081
In stock
NSN: 5331-00-185-0081
FSC Code: 5331
MPN: 2233

5331-00-599-2180 (2-233)

NIIN: 00-599-2180
In stock
NSN: 5331-00-599-2180
FSC Code: 5331
MPN: 2233

5331-12-326-4500 (OR4X2-75FKM/117133)

NIIN: 12-326-4500
In stock
NSN: 5331-12-326-4500
FSC Code: 5331
MPN: OR4X275FKM117133

5331-12-178-6281 (SOR33X3.5-72NBR)

NIIN: 12-178-6281
In stock
NSN: 5331-12-178-6281
FSC Code: 5331
MPN: SOR33X3572NBR

5331-00-803-8120 (2-233)

NIIN: 00-803-8120
In stock
NSN: 5331-00-803-8120
FSC Code: 5331
MPN: 2233

5331-01-006-2776 (2-233)

NIIN: 01-006-2776
In stock
NSN: 5331-01-006-2776
FSC Code: 5331
MPN: 2233

5331-12-178-6297 (04260377240973)

NIIN: 12-178-6297
In stock
NSN: 5331-12-178-6297
FSC Code: 5331
MPN: 04260377240973

5331-00-829-2606 (2-233)

NIIN: 00-829-2606
In stock
NSN: 5331-00-829-2606
FSC Code: 5331
MPN: 2233

5331-12-178-6301 (04260377240980)

NIIN: 12-178-6301
In stock
NSN: 5331-12-178-6301
FSC Code: 5331
MPN: 04260377240980

5331-00-263-9447 (2-233)

NIIN: 00-263-9447
In stock
NSN: 5331-00-263-9447
FSC Code: 5331
MPN: 2233

5331-12-165-9289 (0R11X2-5-70FKM576)

NIIN: 12-165-9289
In stock
NSN: 5331-12-165-9289
FSC Code: 5331
MPN: 0R11X2570FKM576

5331-12-178-6270 (CVR-700429105001)

NIIN: 12-178-6270
In stock
NSN: 5331-12-178-6270
FSC Code: 5331
MPN: CVR700429105001

5331-01-078-5132 (2-233)

NIIN: 01-078-5132
In stock
NSN: 5331-01-078-5132
FSC Code: 5331
MPN: 2233

5331-12-177-4711 (OR22X4-70NBR/150)

NIIN: 12-177-4711
In stock
NSN: 5331-12-177-4711
FSC Code: 5331
MPN: OR22X470NBR150

5331-00-132-6977 (2-233)

NIIN: 00-132-6977
In stock
NSN: 5331-00-132-6977
FSC Code: 5331
MPN: 2233

5331-12-309-6351 (04260377240935)

NIIN: 12-309-6351
In stock
NSN: 5331-12-309-6351
FSC Code: 5331
MPN: 04260377240935

5331-12-198-9620 (04260377241147)

NIIN: 12-198-9620
In stock
NSN: 5331-12-198-9620
FSC Code: 5331
MPN: 04260377241147

5331-01-031-8263 (2-233)

NIIN: 01-031-8263
In stock
NSN: 5331-01-031-8263
FSC Code: 5331
MPN: 2233

5331-01-222-8979 (22-33062)

NIIN: 01-222-8979
In stock
NSN: 5331-01-222-8979
FSC Code: 5331
MPN: 2233062

5331-12-151-3167 (OR56X4-72NBR/872)

NIIN: 12-151-3167
In stock
NSN: 5331-12-151-3167
FSC Code: 5331
MPN: OR56X472NBR872

5331-12-177-7975 (OR20X4-75FKM/117133)

NIIN: 12-177-7975
In stock
NSN: 5331-12-177-7975
FSC Code: 5331
MPN: OR20X475FKM117133

5331-12-195-2496 (OR165X3-72NBR/872)

NIIN: 12-195-2496
In stock
NSN: 5331-12-195-2496
FSC Code: 5331
MPN: OR165X372NBR872

5331-01-222-8978 (22-33061)

NIIN: 01-222-8978
In stock
NSN: 5331-01-222-8978
FSC Code: 5331
MPN: 2233061

5331-01-226-4438 (22-33064)

NIIN: 01-226-4438
In stock
NSN: 5331-01-226-4438
FSC Code: 5331
MPN: 2233064

5331-01-223-5507 (22-33064)

NIIN: 01-223-5507
In stock
NSN: 5331-01-223-5507
FSC Code: 5331
MPN: 2233064

5331-01-399-3807 (5331013993807)

NIIN: 01-399-3807
In stock
NSN: 5331-01-399-3807
FSC Code: 5331
MPN: 5331013993807

5331-01-374-3473 (5331013743473)

NIIN: 01-374-3473
In stock
NSN: 5331-01-374-3473
FSC Code: 5331
MPN: 5331013743473

5331-00-202-4551 (223350N1)

NIIN: 00-202-4551
In stock
NSN: 5331-00-202-4551
FSC Code: 5331
MPN: 223350N1

5331-01-470-6782 (5331014706782)

NIIN: 01-470-6782
In stock
NSN: 5331-01-470-6782
FSC Code: 5331
MPN: 5331014706782

5331-01-365-8125 (5330004687273)

NIIN: 01-365-8125
In stock
NSN: 5331-01-365-8125
FSC Code: 5331
MPN: 5330004687273

5331-01-365-1065 (5331013651065)

NIIN: 01-365-1065
In stock
NSN: 5331-01-365-1065
FSC Code: 5331
MPN: 5331013651065

5331-00-810-3162 (2233E)

NIIN: 00-810-3162
In stock
NSN: 5331-00-810-3162
FSC Code: 5331
MPN: 2233E

5331-00-408-1675 (2-233N103-7)

NIIN: 00-408-1675
In stock
NSN: 5331-00-408-1675
FSC Code: 5331
MPN: 2233N1037

5331-01-185-2590 (2-233N304-75)

NIIN: 01-185-2590
In stock
NSN: 5331-01-185-2590
FSC Code: 5331
MPN: 2233N30475

5331-00-821-0664 (2-233-N506-65)

NIIN: 00-821-0664
In stock
NSN: 5331-00-821-0664
FSC Code: 5331
MPN: 2233N50665

5331-00-580-9762 (2-234)

NIIN: 00-580-9762
In stock
NSN: 5331-00-580-9762
FSC Code: 5331
MPN: 2234

5331-00-741-2096 (2-233N951-75)

NIIN: 00-741-2096
In stock
NSN: 5331-00-741-2096
FSC Code: 5331
MPN: 2233N95175

5331-01-250-7513 (223402-12)

NIIN: 01-250-7513
In stock
NSN: 5331-01-250-7513
FSC Code: 5331
MPN: 22340212

5331-01-138-2492 (223401-28)

NIIN: 01-138-2492
In stock
NSN: 5331-01-138-2492
FSC Code: 5331
MPN: 22340128

5331-01-320-3546 (223404-20)

NIIN: 01-320-3546
In stock
NSN: 5331-01-320-3546
FSC Code: 5331
MPN: 22340420

5331-01-235-2711 (223404-01)

NIIN: 01-235-2711
In stock
NSN: 5331-01-235-2711
FSC Code: 5331
MPN: 22340401

5331-01-235-2716 (223401-23)

NIIN: 01-235-2716
In stock
NSN: 5331-01-235-2716
FSC Code: 5331
MPN: 22340123

5331-01-289-4424 (223404-06)

NIIN: 01-289-4424
In stock
NSN: 5331-01-289-4424
FSC Code: 5331
MPN: 22340406

5331-01-309-2625 (223404-73)

NIIN: 01-309-2625
In stock
NSN: 5331-01-309-2625
FSC Code: 5331
MPN: 22340473

5331-01-309-2624 (223404-51)

NIIN: 01-309-2624
In stock
NSN: 5331-01-309-2624
FSC Code: 5331
MPN: 22340451

5331-01-277-9913 (223401-77)

NIIN: 01-277-9913
In stock
NSN: 5331-01-277-9913
FSC Code: 5331
MPN: 22340177