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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.

5331-01-605-5559 (878285)

NIIN: 01-605-5559
In stock
NSN: 5331-01-605-5559
FSC Code: 5331
MPN: 878285

5331-01-605-4157 (9782905)

NIIN: 01-605-4157
In stock
NSN: 5331-01-605-4157
FSC Code: 5331
MPN: 9782905

5331-01-606-3080 (A9548 REV D ITEM 2CP)

NIIN: 01-606-3080
In stock
NSN: 5331-01-606-3080
FSC Code: 5331
MPN: A9548REVDITEM2CP

5331-01-606-2416 (330566)

NIIN: 01-606-2416
In stock
NSN: 5331-01-606-2416
FSC Code: 5331
MPN: 330566

5331-01-605-9134 (NAS1593-243)

NIIN: 01-605-9134
In stock
NSN: 5331-01-605-9134
FSC Code: 5331
MPN: NAS1593243

5331-01-605-9141 (MA3352B0280)

NIIN: 01-605-9141
In stock
NSN: 5331-01-605-9141
FSC Code: 5331
MPN: MA3352B0280

5331-01-605-9111 (350-32542)

NIIN: 01-605-9111
In stock
NSN: 5331-01-605-9111
FSC Code: 5331
MPN: 35032542

5331-01-605-9087 (NAS1611-224A)

NIIN: 01-605-9087
In stock
NSN: 5331-01-605-9087
FSC Code: 5331
MPN: NAS1611224A

5331-01-605-8900 (NAS1611-003A)

NIIN: 01-605-8900
In stock
NSN: 5331-01-605-8900
FSC Code: 5331
MPN: NAS1611003A

5331-01-606-2329 (AS568-261-25732)

NIIN: 01-606-2329
In stock
NSN: 5331-01-606-2329
FSC Code: 5331
MPN: AS56826125732

5331-01-606-0872 (25KP720)

NIIN: 01-606-0872
In stock
NSN: 5331-01-606-0872
FSC Code: 5331
MPN: 25KP720

5331-01-605-9540 (2-050N674)

NIIN: 01-605-9540
In stock
NSN: 5331-01-605-9540
FSC Code: 5331
MPN: 2050N674

5331-01-605-9230 (354759)

NIIN: 01-605-9230
In stock
NSN: 5331-01-605-9230
FSC Code: 5331
MPN: 354759

5331-01-605-6331 (5052 NM30475)

NIIN: 01-605-6331
In stock
NSN: 5331-01-605-6331
FSC Code: 5331
MPN: 5052NM30475

5331-01-605-4176 (028-11145-001)

NIIN: 01-605-4176
In stock
NSN: 5331-01-605-4176
FSC Code: 5331
MPN: 02811145001

5331-01-605-3456 (74248-11)

NIIN: 01-605-3456
In stock
NSN: 5331-01-605-3456
FSC Code: 5331
MPN: 7424811

5331-01-606-0640 (000226EE)

NIIN: 01-606-0640
In stock
NSN: 5331-01-606-0640
FSC Code: 5331
MPN: 000226EE

5331-01-605-8314 (72277-2-04-22)

NIIN: 01-605-8314
In stock
NSN: 5331-01-605-8314
FSC Code: 5331
MPN: 7227720422

5331-01-605-6381 (028-13059-000)

NIIN: 01-605-6381
In stock
NSN: 5331-01-605-6381
FSC Code: 5331
MPN: 02813059000

5331-01-605-3605 (AS3578-361)

NIIN: 01-605-3605
In stock
NSN: 5331-01-605-3605
FSC Code: 5331
MPN: AS3578361

5331-01-605-3580 (AS568-916T OXYGEN CLEANCP)

NIIN: 01-605-3580
In stock
NSN: 5331-01-605-3580
FSC Code: 5331
MPN: AS568916TOXYGENCLEANCP

5331-01-605-3316 (123-924-5)

NIIN: 01-605-3316
In stock
NSN: 5331-01-605-3316
FSC Code: 5331
MPN: 1239245

5331-01-605-4395 (AS568-125T OXYGEN CLEANCP)

NIIN: 01-605-4395
In stock
NSN: 5331-01-605-4395
FSC Code: 5331
MPN: AS568125TOXYGENCLEANCP

5331-01-605-4291 (301014-01)

NIIN: 01-605-4291
In stock
NSN: 5331-01-605-4291
FSC Code: 5331
MPN: 30101401

5331-01-605-3955 (903-6397269 PC101)

NIIN: 01-605-3955
In stock
NSN: 5331-01-605-3955
FSC Code: 5331
MPN: 9036397269PC101

5331-01-605-3417 (102A10001)

NIIN: 01-605-3417
In stock
NSN: 5331-01-605-3417
FSC Code: 5331
MPN: 102A10001

5331-01-605-1888 (91355-ZW1-701)

NIIN: 01-605-1888
In stock
NSN: 5331-01-605-1888
FSC Code: 5331
MPN: 91355ZW1701

5331-01-605-1869 (91308-PK1-003)

NIIN: 01-605-1869
In stock
NSN: 5331-01-605-1869
FSC Code: 5331
MPN: 91308PK1003

5331-01-605-1528 (2-228N674)

NIIN: 01-605-1528
In stock
NSN: 5331-01-605-1528
FSC Code: 5331
MPN: 2228N674

5331-01-605-1516 (36625-11.1X1.6 N)

NIIN: 01-605-1516
In stock
NSN: 5331-01-605-1516
FSC Code: 5331
MPN: 36625111X16N

5331-01-605-1209 (156001)

NIIN: 01-605-1209
In stock
NSN: 5331-01-605-1209
FSC Code: 5331
MPN: 156001

5331-01-605-3889 (37138)

NIIN: 01-605-3889
In stock
NSN: 5331-01-605-3889
FSC Code: 5331
MPN: 37138

5331-01-605-3530 (144950 36)

NIIN: 01-605-3530
In stock
NSN: 5331-01-605-3530
FSC Code: 5331
MPN: 14495036

5331-01-605-3202 (AS568-023T OXYGEN CLEANCP)

NIIN: 01-605-3202
In stock
NSN: 5331-01-605-3202
FSC Code: 5331
MPN: AS568023TOXYGENCLEANCP

5331-01-605-2078 (2375012392)

NIIN: 01-605-2078
In stock
NSN: 5331-01-605-2078
FSC Code: 5331
MPN: 2375012392

5331-01-605-0962 (892446)

NIIN: 01-605-0962
In stock
NSN: 5331-01-605-0962
FSC Code: 5331
MPN: 892446

5331-01-605-5455 (AS568-146)

NIIN: 01-605-5455
In stock
NSN: 5331-01-605-5455
FSC Code: 5331
MPN: AS568146

5331-01-605-4048 (2-033N674)

NIIN: 01-605-4048
In stock
NSN: 5331-01-605-4048
FSC Code: 5331
MPN: 2033N674

5331-01-605-3329 (AS568-017T OXYGEN CLEANCP)

NIIN: 01-605-3329
In stock
NSN: 5331-01-605-3329
FSC Code: 5331
MPN: AS568017TOXYGENCLEANCP

5331-01-605-3047 (19A-012878-001)

NIIN: 01-605-3047
In stock
NSN: 5331-01-605-3047
FSC Code: 5331
MPN: 19A012878001

5331-01-605-2086 (700-280-416)

NIIN: 01-605-2086
In stock
NSN: 5331-01-605-2086
FSC Code: 5331
MPN: 700280416

5331-01-605-2235 (91357-ZW1-701)

NIIN: 01-605-2235
In stock
NSN: 5331-01-605-2235
FSC Code: 5331
MPN: 91357ZW1701

5331-01-605-1921 (91356-ZY3-003)

NIIN: 01-605-1921
In stock
NSN: 5331-01-605-1921
FSC Code: 5331
MPN: 91356ZY3003

5331-01-605-1512 (714177-03X2 VMQ70)

NIIN: 01-605-1512
In stock
NSN: 5331-01-605-1512
FSC Code: 5331
MPN: 71417703X2VMQ70

5331-01-605-0971 (3949781)

NIIN: 01-605-0971
In stock
NSN: 5331-01-605-0971
FSC Code: 5331
MPN: 3949781

5331-01-605-0341 (064019-075)

NIIN: 01-605-0341
In stock
NSN: 5331-01-605-0341
FSC Code: 5331
MPN: 064019075

5331-01-605-0340 (064019-076)

NIIN: 01-605-0340
In stock
NSN: 5331-01-605-0340
FSC Code: 5331
MPN: 064019076

5331-01-604-9799 (J515CH178X0235H)

NIIN: 01-604-9799
In stock
NSN: 5331-01-604-9799
FSC Code: 5331
MPN: J515CH178X0235H