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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.

5331-00-825-6008 (B1730V7M)

NIIN: 00-825-6008
In stock
NSN: 5331-00-825-6008
FSC Code: 5331
MPN: B1730V7M

5331-01-187-0461 (B-1728-V)

NIIN: 01-187-0461
In stock
NSN: 5331-01-187-0461
FSC Code: 5331
MPN: B1728V

5331-01-534-9074 (604Z101)

NIIN: 01-534-9074
In stock
NSN: 5331-01-534-9074
FSC Code: 5331
MPN: 604Z101

5331-01-534-9083 (604Y101)

NIIN: 01-534-9083
In stock
NSN: 5331-01-534-9083
FSC Code: 5331
MPN: 604Y101

5331-01-288-9169 (B16-733-11)

NIIN: 01-288-9169
In stock
NSN: 5331-01-288-9169
FSC Code: 5331
MPN: B1673311

5331-01-288-9167 (B16-733-9)

NIIN: 01-288-9167
In stock
NSN: 5331-01-288-9167
FSC Code: 5331
MPN: B167339

5331-01-288-9168 (B16-733-10)

NIIN: 01-288-9168
In stock
NSN: 5331-01-288-9168
FSC Code: 5331
MPN: B1673310

5331-01-230-4599 (B-1662031-01)

NIIN: 01-230-4599
In stock
NSN: 5331-01-230-4599
FSC Code: 5331
MPN: B166203101

5331-01-249-9554 (B-1-6)

NIIN: 01-249-9554
In stock
NSN: 5331-01-249-9554
FSC Code: 5331
MPN: B16

5331-01-302-9889 (B-142E-0250-15)

NIIN: 01-302-9889
In stock
NSN: 5331-01-302-9889
FSC Code: 5331
MPN: B142E025015

5331-01-284-3730 (B-142-E)

NIIN: 01-284-3730
In stock
NSN: 5331-01-284-3730
FSC Code: 5331
MPN: B142E

5331-01-298-4750 (B-1421E-2IN)

NIIN: 01-298-4750
In stock
NSN: 5331-01-298-4750
FSC Code: 5331
MPN: B1421E2IN

5331-01-265-6817 (B14056-916)

NIIN: 01-265-6817
In stock
NSN: 5331-01-265-6817
FSC Code: 5331
MPN: B14056916

5331-01-054-2374 (B14056-910)

NIIN: 01-054-2374
In stock
NSN: 5331-01-054-2374
FSC Code: 5331
MPN: B14056910

5331-01-033-8854 (B14056-914)

NIIN: 01-033-8854
In stock
NSN: 5331-01-033-8854
FSC Code: 5331
MPN: B14056914

5331-01-033-8853 (B14056-908)

NIIN: 01-033-8853
In stock
NSN: 5331-01-033-8853
FSC Code: 5331
MPN: B14056908

5331-01-033-1580 (B14056-112)

NIIN: 01-033-1580
In stock
NSN: 5331-01-033-1580
FSC Code: 5331
MPN: B14056112

5331-01-033-1579 (B14056-008)

NIIN: 01-033-1579
In stock
NSN: 5331-01-033-1579
FSC Code: 5331
MPN: B14056008

5331-00-576-9412 (B13953-3)

NIIN: 00-576-9412
In stock
NSN: 5331-00-576-9412
FSC Code: 5331
MPN: B139533

5331-01-343-7205 (6040-045)

NIIN: 01-343-7205
In stock
NSN: 5331-01-343-7205
FSC Code: 5331
MPN: 6040045

5331-01-242-0715 (B1259.503)

NIIN: 01-242-0715
In stock
NSN: 5331-01-242-0715
FSC Code: 5331
MPN: B1259503

5331-01-169-7144 (B1265.503)

NIIN: 01-169-7144
In stock
NSN: 5331-01-169-7144
FSC Code: 5331
MPN: B1265503

5331-01-280-7521 (B1250.503)

NIIN: 01-280-7521
In stock
NSN: 5331-01-280-7521
FSC Code: 5331
MPN: B1250503

5331-01-313-4953 (B-124)

NIIN: 01-313-4953
In stock
NSN: 5331-01-313-4953
FSC Code: 5331
MPN: B124

5331-01-309-9373 (B122E-0200-15)

NIIN: 01-309-9373
In stock
NSN: 5331-01-309-9373
FSC Code: 5331
MPN: B122E020015

5331-01-295-8715 (B-122-E)

NIIN: 01-295-8715
In stock
NSN: 5331-01-295-8715
FSC Code: 5331
MPN: B122E

5331-01-307-8576 (B-122-A)

NIIN: 01-307-8576
In stock
NSN: 5331-01-307-8576
FSC Code: 5331
MPN: B122A

5331-01-283-3545 (B-122-A-2.50-15)

NIIN: 01-283-3545
In stock
NSN: 5331-01-283-3545
FSC Code: 5331
MPN: B122A25015

5331-01-307-4224 (B-122-A)

NIIN: 01-307-4224
In stock
NSN: 5331-01-307-4224
FSC Code: 5331
MPN: B122A

5331-01-284-7899 (B1224.503)

NIIN: 01-284-7899
In stock
NSN: 5331-01-284-7899
FSC Code: 5331
MPN: B1224503

5331-01-263-1080 (B-122-0250)

NIIN: 01-263-1080
In stock
NSN: 5331-01-263-1080
FSC Code: 5331
MPN: B1220250

5331-01-282-0751 (B1212.903)

NIIN: 01-282-0751
In stock
NSN: 5331-01-282-0751
FSC Code: 5331
MPN: B1212903

5331-01-172-1858 (B-120053)

NIIN: 01-172-1858
In stock
NSN: 5331-01-172-1858
FSC Code: 5331
MPN: B120053

5331-01-280-7520 (B115.403)

NIIN: 01-280-7520
In stock
NSN: 5331-01-280-7520
FSC Code: 5331
MPN: B115403

5331-01-295-4671 (B1135.517)

NIIN: 01-295-4671
In stock
NSN: 5331-01-295-4671
FSC Code: 5331
MPN: B1135517

5331-01-284-7898 (B1133.903)

NIIN: 01-284-7898
In stock
NSN: 5331-01-284-7898
FSC Code: 5331
MPN: B1133903

5331-01-298-4749 (B-112-E-10)

NIIN: 01-298-4749
In stock
NSN: 5331-01-298-4749
FSC Code: 5331
MPN: B112E10

5331-01-284-7896 (B1113.803)

NIIN: 01-284-7896
In stock
NSN: 5331-01-284-7896
FSC Code: 5331
MPN: B1113803

5331-01-284-7897 (B1117.903)

NIIN: 01-284-7897
In stock
NSN: 5331-01-284-7897
FSC Code: 5331
MPN: B1117903

5331-01-226-4444 (B1110.203)

NIIN: 01-226-4444
In stock
NSN: 5331-01-226-4444
FSC Code: 5331
MPN: B1110203

5331-00-438-5106 (B1109-503)

NIIN: 00-438-5106
In stock
NSN: 5331-00-438-5106
FSC Code: 5331
MPN: B1109503

5331-01-280-7523 (B1113.565)

NIIN: 01-280-7523
In stock
NSN: 5331-01-280-7523
FSC Code: 5331
MPN: B1113565

5331-01-278-6074 (B1091503)

NIIN: 01-278-6074
In stock
NSN: 5331-01-278-6074
FSC Code: 5331
MPN: B1091503

5331-01-534-9099 (602C101)

NIIN: 01-534-9099
In stock
NSN: 5331-01-534-9099
FSC Code: 5331
MPN: 602C101

5331-01-284-7901 (B-107-0250-R-10)

NIIN: 01-284-7901
In stock
NSN: 5331-01-284-7901
FSC Code: 5331
MPN: B1070250R10

5331-00-999-9053 (B104085PC103601)

NIIN: 00-999-9053
In stock
NSN: 5331-00-999-9053
FSC Code: 5331
MPN: B104085PC103601

5331-01-107-5094 (B1025.503)

NIIN: 01-107-5094
In stock
NSN: 5331-01-107-5094
FSC Code: 5331
MPN: B1025503

5331-01-193-9393 (B1021.503)

NIIN: 01-193-9393
In stock
NSN: 5331-01-193-9393
FSC Code: 5331
MPN: B1021503