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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.

5331-01-205-9789 (955989-9)

NIIN: 01-205-9789
In stock
NSN: 5331-01-205-9789
FSC Code: 5331
MPN: 9559899

5331-01-205-9788 (955974-1)

NIIN: 01-205-9788
In stock
NSN: 5331-01-205-9788
FSC Code: 5331
MPN: 9559741

5331-01-205-9785 (955983-2)

NIIN: 01-205-9785
In stock
NSN: 5331-01-205-9785
FSC Code: 5331
MPN: 9559832

5331-01-229-8088 (955466-1)

NIIN: 01-229-8088
In stock
NSN: 5331-01-229-8088
FSC Code: 5331
MPN: 9554661

5331-00-047-3400 (955372-010)

NIIN: 00-047-3400
In stock
NSN: 5331-00-047-3400
FSC Code: 5331
MPN: 955372010

5331-01-013-3191 (955442-010)

NIIN: 01-013-3191
In stock
NSN: 5331-01-013-3191
FSC Code: 5331
MPN: 955442010

5331-00-092-7341 (955372-006)

NIIN: 00-092-7341
In stock
NSN: 5331-00-092-7341
FSC Code: 5331
MPN: 955372006

5331-00-102-2971 (955365-9)

NIIN: 00-102-2971
In stock
NSN: 5331-00-102-2971
FSC Code: 5331
MPN: 9553659

5331-00-099-7604 (955367-1)

NIIN: 00-099-7604
In stock
NSN: 5331-00-099-7604
FSC Code: 5331
MPN: 9553671

5331-00-128-7672 (955365-3)

NIIN: 00-128-7672
In stock
NSN: 5331-00-128-7672
FSC Code: 5331
MPN: 9553653

5331-01-266-3944 (955227-1)

NIIN: 01-266-3944
In stock
NSN: 5331-01-266-3944
FSC Code: 5331
MPN: 9552271

5331-01-165-5568 (955184-30)

NIIN: 01-165-5568
In stock
NSN: 5331-01-165-5568
FSC Code: 5331
MPN: 95518430

5331-00-984-1948 (955111-10)

NIIN: 00-984-1948
In stock
NSN: 5331-00-984-1948
FSC Code: 5331
MPN: 95511110

5331-00-905-6111 (955126-20)

NIIN: 00-905-6111
In stock
NSN: 5331-00-905-6111
FSC Code: 5331
MPN: 95512620

5331-01-163-5834 (955096-211)

NIIN: 01-163-5834
In stock
NSN: 5331-01-163-5834
FSC Code: 5331
MPN: 955096211

5331-01-274-3109 (9551-232-1-1)

NIIN: 01-274-3109
In stock
NSN: 5331-01-274-3109
FSC Code: 5331
MPN: 955123211

5331-00-913-6043 (955067-2300)

NIIN: 00-913-6043
In stock
NSN: 5331-00-913-6043
FSC Code: 5331
MPN: 9550672300

5331-01-037-4630 (955096-015)

NIIN: 01-037-4630
In stock
NSN: 5331-01-037-4630
FSC Code: 5331
MPN: 955096015

5331-01-035-3566 (955096-012)

NIIN: 01-035-3566
In stock
NSN: 5331-01-035-3566
FSC Code: 5331
MPN: 955096012

5331-00-912-9176 (955085-115)

NIIN: 00-912-9176
In stock
NSN: 5331-00-912-9176
FSC Code: 5331
MPN: 955085115

5331-01-178-1762 (954521-6)

NIIN: 01-178-1762
In stock
NSN: 5331-01-178-1762
FSC Code: 5331
MPN: 9545216

5331-01-024-9767 (95450V2)

NIIN: 01-024-9767
In stock
NSN: 5331-01-024-9767
FSC Code: 5331
MPN: 95450V2

5331-01-478-2488 (V0747-75 5-058)

NIIN: 01-478-2488
In stock
NSN: 5331-01-478-2488
FSC Code: 5331
MPN: V0747755058

5331-01-480-7850 (5-058V709-90)

NIIN: 01-480-7850
In stock
NSN: 5331-01-480-7850
FSC Code: 5331
MPN: 5058V70990

5331-00-802-0798 (9-54000-001)

NIIN: 00-802-0798
In stock
NSN: 5331-00-802-0798
FSC Code: 5331
MPN: 954000001

5331-00-443-1104 (9-540004-02)

NIIN: 00-443-1104
In stock
NSN: 5331-00-443-1104
FSC Code: 5331
MPN: 954000402

5331-01-457-9148 (5-056;)

NIIN: 01-457-9148
In stock
NSN: 5331-01-457-9148
FSC Code: 5331
MPN: 5056

5331-01-208-3768 (953553-013)

NIIN: 01-208-3768
In stock
NSN: 5331-01-208-3768
FSC Code: 5331
MPN: 953553013

5331-00-510-8381 (953542-5)

NIIN: 00-510-8381
In stock
NSN: 5331-00-510-8381
FSC Code: 5331
MPN: 9535425

5331-00-534-2170 (953542-8)

NIIN: 00-534-2170
In stock
NSN: 5331-00-534-2170
FSC Code: 5331
MPN: 9535428

5331-00-593-4484 (953542-12)

NIIN: 00-593-4484
In stock
NSN: 5331-00-593-4484
FSC Code: 5331
MPN: 95354212

5331-01-045-4257 (953541-22)

NIIN: 01-045-4257
In stock
NSN: 5331-01-045-4257
FSC Code: 5331
MPN: 95354122

5331-01-060-8188 (953541-130)

NIIN: 01-060-8188
In stock
NSN: 5331-01-060-8188
FSC Code: 5331
MPN: 953541130

5331-01-060-9612 (953541-18)

NIIN: 01-060-9612
In stock
NSN: 5331-01-060-9612
FSC Code: 5331
MPN: 95354118

5331-00-477-3588 (953541-125)

NIIN: 00-477-3588
In stock
NSN: 5331-00-477-3588
FSC Code: 5331
MPN: 953541125

5331-00-149-8818 (953523-8)

NIIN: 00-149-8818
In stock
NSN: 5331-00-149-8818
FSC Code: 5331
MPN: 9535238

5331-00-415-6803 (953523-9)

NIIN: 00-415-6803
In stock
NSN: 5331-00-415-6803
FSC Code: 5331
MPN: 9535239

5331-00-991-8377 (953520-6)

NIIN: 00-991-8377
In stock
NSN: 5331-00-991-8377
FSC Code: 5331
MPN: 9535206

5331-00-392-2552 (953524-7)

NIIN: 00-392-2552
In stock
NSN: 5331-00-392-2552
FSC Code: 5331
MPN: 9535247

5331-00-478-0670 (953523-7)

NIIN: 00-478-0670
In stock
NSN: 5331-00-478-0670
FSC Code: 5331
MPN: 9535237

5331-00-991-8375 (953520-12)

NIIN: 00-991-8375
In stock
NSN: 5331-00-991-8375
FSC Code: 5331
MPN: 95352012

5331-00-938-4289 (953519-9)

NIIN: 00-938-4289
In stock
NSN: 5331-00-938-4289
FSC Code: 5331
MPN: 9535199

5331-00-097-6893 (953520-16)

NIIN: 00-097-6893
In stock
NSN: 5331-00-097-6893
FSC Code: 5331
MPN: 95352016

5331-00-987-1925 (953520-20)

NIIN: 00-987-1925
In stock
NSN: 5331-00-987-1925
FSC Code: 5331
MPN: 95352020

5331-00-938-6853 (953519-7)

NIIN: 00-938-6853
In stock
NSN: 5331-00-938-6853
FSC Code: 5331
MPN: 9535197

5331-00-938-6851 (953519-270)

NIIN: 00-938-6851
In stock
NSN: 5331-00-938-6851
FSC Code: 5331
MPN: 953519270

5331-00-556-7436 (953519-4)

NIIN: 00-556-7436
In stock
NSN: 5331-00-556-7436
FSC Code: 5331
MPN: 9535194

5331-00-938-6852 (953519-28)

NIIN: 00-938-6852
In stock
NSN: 5331-00-938-6852
FSC Code: 5331
MPN: 95351928