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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.

5331-01-556-5026 (1824979C1)

NIIN: 01-556-5026
In stock
NSN: 5331-01-556-5026
FSC Code: 5331
MPN: 1824979C1

5331-01-556-5028 (1824980C1)

NIIN: 01-556-5028
In stock
NSN: 5331-01-556-5028
FSC Code: 5331
MPN: 1824980C1

5331-01-535-4489 (1824948C1)

NIIN: 01-535-4489
In stock
NSN: 5331-01-535-4489
FSC Code: 5331
MPN: 1824948C1

5331-01-556-5022 (1824948C1)

NIIN: 01-556-5022
In stock
NSN: 5331-01-556-5022
FSC Code: 5331
MPN: 1824948C1

5331-01-535-4475 (1824736C1)

NIIN: 01-535-4475
In stock
NSN: 5331-01-535-4475
FSC Code: 5331
MPN: 1824736C1

5331-01-556-5020 (1824908C1)

NIIN: 01-556-5020
In stock
NSN: 5331-01-556-5020
FSC Code: 5331
MPN: 1824908C1

5331-01-535-4474 (1824735C1)

NIIN: 01-535-4474
In stock
NSN: 5331-01-535-4474
FSC Code: 5331
MPN: 1824735C1

5331-01-556-5015 (1824735C1)

NIIN: 01-556-5015
In stock
NSN: 5331-01-556-5015
FSC Code: 5331
MPN: 1824735C1

5331-01-556-5016 (1824736C1)

NIIN: 01-556-5016
In stock
NSN: 5331-01-556-5016
FSC Code: 5331
MPN: 1824736C1

5331-01-535-4476 (1824908C1)

NIIN: 01-535-4476
In stock
NSN: 5331-01-535-4476
FSC Code: 5331
MPN: 1824908C1

5331-01-535-4473 (1823790C1)

NIIN: 01-535-4473
In stock
NSN: 5331-01-535-4473
FSC Code: 5331
MPN: 1823790C1

5331-01-566-9130 (1823565C1)

NIIN: 01-566-9130
In stock
NSN: 5331-01-566-9130
FSC Code: 5331
MPN: 1823565C1

5331-00-599-2373 (50C2045CHANGE3ITEM3)

NIIN: 00-599-2373
In stock
NSN: 5331-00-599-2373
FSC Code: 5331
MPN: 50C2045CHANGE3ITEM3

5331-01-556-5008 (1823790C1)

NIIN: 01-556-5008
In stock
NSN: 5331-01-556-5008
FSC Code: 5331
MPN: 1823790C1

5331-00-567-8395 (50B25174-4)

NIIN: 00-567-8395
In stock
NSN: 5331-00-567-8395
FSC Code: 5331
MPN: 50B251744

5331-01-535-4469 (1822998C1)

NIIN: 01-535-4469
In stock
NSN: 5331-01-535-4469
FSC Code: 5331
MPN: 1822998C1

5331-01-556-5001 (1823010C1)

NIIN: 01-556-5001
In stock
NSN: 5331-01-556-5001
FSC Code: 5331
MPN: 1823010C1

5331-01-556-5000 (1822998C1)

NIIN: 01-556-5000
In stock
NSN: 5331-01-556-5000
FSC Code: 5331
MPN: 1822998C1

5331-01-535-4472 (1823010C1)

NIIN: 01-535-4472
In stock
NSN: 5331-01-535-4472
FSC Code: 5331
MPN: 1823010C1

5331-00-090-0717 (50B25174-1)

NIIN: 00-090-0717
In stock
NSN: 5331-00-090-0717
FSC Code: 5331
MPN: 50B251741

5331-00-125-6341 (50B25174-5)

NIIN: 00-125-6341
In stock
NSN: 5331-00-125-6341
FSC Code: 5331
MPN: 50B251745

5331-01-081-4496 (50AX167)

NIIN: 01-081-4496
In stock
NSN: 5331-01-081-4496
FSC Code: 5331
MPN: 50AX167

5331-01-451-5923 (1-82-12.0)

NIIN: 01-451-5923
In stock
NSN: 5331-01-451-5923
FSC Code: 5331
MPN: 182120

5331-01-450-8964 (1-82-12.0)

NIIN: 01-450-8964
In stock
NSN: 5331-01-450-8964
FSC Code: 5331
MPN: 182120

5331-01-450-7010 (1-82-12.0)

NIIN: 01-450-7010
In stock
NSN: 5331-01-450-7010
FSC Code: 5331
MPN: 182120

5331-01-195-8883 (509E230AX)

NIIN: 01-195-8883
In stock
NSN: 5331-01-195-8883
FSC Code: 5331
MPN: 509E230AX

5331-00-489-0801 (509HPWA51SW13)

NIIN: 00-489-0801
In stock
NSN: 5331-00-489-0801
FSC Code: 5331
MPN: 509HPWA51SW13

5331-01-556-4970 (1821098C2)

NIIN: 01-556-4970
In stock
NSN: 5331-01-556-4970
FSC Code: 5331
MPN: 1821098C2

5331-01-535-4468 (1821098C2)

NIIN: 01-535-4468
In stock
NSN: 5331-01-535-4468
FSC Code: 5331
MPN: 1821098C2

5331-01-556-4967 (1820951C1)

NIIN: 01-556-4967
In stock
NSN: 5331-01-556-4967
FSC Code: 5331
MPN: 1820951C1

5331-01-556-5141 (1820951C1)

NIIN: 01-556-5141
In stock
NSN: 5331-01-556-5141
FSC Code: 5331
MPN: 1820951C1

5331-01-535-4461 (1820907C2)

NIIN: 01-535-4461
In stock
NSN: 5331-01-535-4461
FSC Code: 5331
MPN: 1820907C2

5331-01-556-4958 (1820878C2)

NIIN: 01-556-4958
In stock
NSN: 5331-01-556-4958
FSC Code: 5331
MPN: 1820878C2

5331-01-556-4960 (1820907C2)

NIIN: 01-556-4960
In stock
NSN: 5331-01-556-4960
FSC Code: 5331
MPN: 1820907C2

5331-01-547-4611 (1820878C2)

NIIN: 01-547-4611
In stock
NSN: 5331-01-547-4611
FSC Code: 5331
MPN: 1820878C2

5331-01-336-6886 (509-4676081)

NIIN: 01-336-6886
In stock
NSN: 5331-01-336-6886
FSC Code: 5331
MPN: 5094676081

5331-01-313-3572 (5-092-N674-70)

NIIN: 01-313-3572
In stock
NSN: 5331-01-313-3572
FSC Code: 5331
MPN: 5092N67470

5331-00-914-3147 (5090PC)

NIIN: 00-914-3147
In stock
NSN: 5331-00-914-3147
FSC Code: 5331
MPN: 5090PC

5331-01-212-6042 (509-0264)

NIIN: 01-212-6042
In stock
NSN: 5331-01-212-6042
FSC Code: 5331
MPN: 5090264

5331-01-215-9642 (509-0263)

NIIN: 01-215-9642
In stock
NSN: 5331-01-215-9642
FSC Code: 5331
MPN: 5090263

5331-01-212-4430 (509-0265)

NIIN: 01-212-4430
In stock
NSN: 5331-01-212-4430
FSC Code: 5331
MPN: 5090265

5331-01-229-8077 (509-0142)

NIIN: 01-229-8077
In stock
NSN: 5331-01-229-8077
FSC Code: 5331
MPN: 5090142

5331-01-337-6863 (509-0096)

NIIN: 01-337-6863
In stock
NSN: 5331-01-337-6863
FSC Code: 5331
MPN: 5090096

5331-01-288-8983 (509-0144)

NIIN: 01-288-8983
In stock
NSN: 5331-01-288-8983
FSC Code: 5331
MPN: 5090144

5331-00-829-5784 (509-0101)

NIIN: 00-829-5784
In stock
NSN: 5331-00-829-5784
FSC Code: 5331
MPN: 5090101

5331-00-973-8598 (509-0094)

NIIN: 00-973-8598
In stock
NSN: 5331-00-973-8598
FSC Code: 5331
MPN: 5090094

5331-01-264-6392 (509-0091)

NIIN: 01-264-6392
In stock
NSN: 5331-01-264-6392
FSC Code: 5331
MPN: 5090091

5331-00-880-5923 (508885-1)

NIIN: 00-880-5923
In stock
NSN: 5331-00-880-5923
FSC Code: 5331
MPN: 5088851