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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.

5331-01-115-2559 (32-03614)

NIIN: 01-115-2559
In stock
NSN: 5331-01-115-2559
FSC Code: 5331
MPN: 3203614

5331-01-536-9151 (10661096-002)

NIIN: 01-536-9151
In stock
NSN: 5331-01-536-9151
FSC Code: 5331
MPN: 10661096002

5331-01-534-0119 (10661096-001)

NIIN: 01-534-0119
In stock
NSN: 5331-01-534-0119
FSC Code: 5331
MPN: 10661096001

5331-01-312-0166 (32058-49)

NIIN: 01-312-0166
In stock
NSN: 5331-01-312-0166
FSC Code: 5331
MPN: 3205849

5331-01-249-4058 (320-6382-000)

NIIN: 01-249-4058
In stock
NSN: 5331-01-249-4058
FSC Code: 5331
MPN: 3206382000

5331-01-348-1734 (106722CACP)

NIIN: 01-348-1734
In stock
NSN: 5331-01-348-1734
FSC Code: 5331
MPN: 106722CACP

5331-00-167-2597 (320-71)

NIIN: 00-167-2597
In stock
NSN: 5331-00-167-2597
FSC Code: 5331
MPN: 32071

5331-01-353-9394 (990013-832)

NIIN: 01-353-9394
In stock
NSN: 5331-01-353-9394
FSC Code: 5331
MPN: 990013832

5331-01-431-7866 (10683-65)

NIIN: 01-431-7866
In stock
NSN: 5331-01-431-7866
FSC Code: 5331
MPN: 1068365

5331-01-521-5599 (10683-607)

NIIN: 01-521-5599
In stock
NSN: 5331-01-521-5599
FSC Code: 5331
MPN: 10683607

5331-01-431-7863 (10683-484)

NIIN: 01-431-7863
In stock
NSN: 5331-01-431-7863
FSC Code: 5331
MPN: 10683484

5331-01-528-7775 (10683-527)

NIIN: 01-528-7775
In stock
NSN: 5331-01-528-7775
FSC Code: 5331
MPN: 10683527

5331-01-431-7860 (10683-471)

NIIN: 01-431-7860
In stock
NSN: 5331-01-431-7860
FSC Code: 5331
MPN: 10683471

5331-01-431-7864 (10683-426)

NIIN: 01-431-7864
In stock
NSN: 5331-01-431-7864
FSC Code: 5331
MPN: 10683426

5331-01-431-7865 (10683-424)

NIIN: 01-431-7865
In stock
NSN: 5331-01-431-7865
FSC Code: 5331
MPN: 10683424

5331-01-431-7861 (10683-491)

NIIN: 01-431-7861
In stock
NSN: 5331-01-431-7861
FSC Code: 5331
MPN: 10683491

5331-01-528-7983 (10683-475)

NIIN: 01-528-7983
In stock
NSN: 5331-01-528-7983
FSC Code: 5331
MPN: 10683475

5331-01-431-7862 (10683-468)

NIIN: 01-431-7862
In stock
NSN: 5331-01-431-7862
FSC Code: 5331
MPN: 10683468

5331-00-533-3972 (320-8A)

NIIN: 00-533-3972
In stock
NSN: 5331-00-533-3972
FSC Code: 5331
MPN: 3208A

5331-01-007-4906 (3-20C147-7)

NIIN: 01-007-4906
In stock
NSN: 5331-01-007-4906
FSC Code: 5331
MPN: 320C1477

5331-00-420-4700 (3-20E515-8)

NIIN: 00-420-4700
In stock
NSN: 5331-00-420-4700
FSC Code: 5331
MPN: 320E5158

5331-00-400-5495 (3-20N183-9)

NIIN: 00-400-5495
In stock
NSN: 5331-00-400-5495
FSC Code: 5331
MPN: 320N1839

5331-00-182-3192 (3-20N168-8)

NIIN: 00-182-3192
In stock
NSN: 5331-00-182-3192
FSC Code: 5331
MPN: 320N1688

5331-01-306-6043 (3-20N-9)

NIIN: 01-306-6043
In stock
NSN: 5331-01-306-6043
FSC Code: 5331
MPN: 320N9

5331-01-464-8530 (107.034.703.024)

NIIN: 01-464-8530
In stock
NSN: 5331-01-464-8530
FSC Code: 5331
MPN: 107034703024

5331-01-464-8552 (107.034.703.028)

NIIN: 01-464-8552
In stock
NSN: 5331-01-464-8552
FSC Code: 5331
MPN: 107034703028

5331-99-559-6955 (ORINGIMP01234X139NBRM80)

NIIN: 99-559-6955
In stock
NSN: 5331-99-559-6955
FSC Code: 5331
MPN: ORINGIMP01234X139NBRM80

5331-01-101-8072 (32-112-48)

NIIN: 01-101-8072
In stock
NSN: 5331-01-101-8072
FSC Code: 5331
MPN: 3211248

5331-00-758-9651 (32-11274)

NIIN: 00-758-9651
In stock
NSN: 5331-00-758-9651
FSC Code: 5331
MPN: 3211274

5331-01-082-1905 (32-113-71)

NIIN: 01-082-1905
In stock
NSN: 5331-01-082-1905
FSC Code: 5331
MPN: 3211371

5331-01-082-2176 (32-113-66)

NIIN: 01-082-2176
In stock
NSN: 5331-01-082-2176
FSC Code: 5331
MPN: 3211366

5331-01-082-1904 (32-113-77)

NIIN: 01-082-1904
In stock
NSN: 5331-01-082-1904
FSC Code: 5331
MPN: 3211377

5331-01-551-4029 (107275-011)

NIIN: 01-551-4029
In stock
NSN: 5331-01-551-4029
FSC Code: 5331
MPN: 107275011

5331-01-551-4025 (107275-017)

NIIN: 01-551-4025
In stock
NSN: 5331-01-551-4025
FSC Code: 5331
MPN: 107275017

5331-01-474-1719 (107-3117)

NIIN: 01-474-1719
In stock
NSN: 5331-01-474-1719
FSC Code: 5331
MPN: 1073117

5331-00-952-5005 (32-14079A05)

NIIN: 00-952-5005
In stock
NSN: 5331-00-952-5005
FSC Code: 5331
MPN: 3214079A05

5331-00-043-5267 (32-14079A10)

NIIN: 00-043-5267
In stock
NSN: 5331-00-043-5267
FSC Code: 5331
MPN: 3214079A10

5331-00-945-4430 (321-422-1)

NIIN: 00-945-4430
In stock
NSN: 5331-00-945-4430
FSC Code: 5331
MPN: 3214221

5331-01-450-0949 (107427-004)

NIIN: 01-450-0949
In stock
NSN: 5331-01-450-0949
FSC Code: 5331
MPN: 107427004

5331-01-348-6912 (10751-500)

NIIN: 01-348-6912
In stock
NSN: 5331-01-348-6912
FSC Code: 5331
MPN: 10751500

5331-01-563-3272 (107577461C)

NIIN: 01-563-3272
In stock
NSN: 5331-01-563-3272
FSC Code: 5331
MPN: 107577461C

5331-01-563-3270 (107578830C)

NIIN: 01-563-3270
In stock
NSN: 5331-01-563-3270
FSC Code: 5331
MPN: 107578830C

5331-01-330-9595 (32-1703)

NIIN: 01-330-9595
In stock
NSN: 5331-01-330-9595
FSC Code: 5331
MPN: 321703

5331-00-821-7503 (32172-101)

NIIN: 00-821-7503
In stock
NSN: 5331-00-821-7503
FSC Code: 5331
MPN: 32172101

5331-01-424-6735 (107835-1)

NIIN: 01-424-6735
In stock
NSN: 5331-01-424-6735
FSC Code: 5331
MPN: 1078351

5331-01-308-2133 (3220-8020-5)

NIIN: 01-308-2133
In stock
NSN: 5331-01-308-2133
FSC Code: 5331
MPN: 322080205

5331-01-093-0736 (3220-8013-0)

NIIN: 01-093-0736
In stock
NSN: 5331-01-093-0736
FSC Code: 5331
MPN: 322080130

5331-01-514-3213 (107-9976)

NIIN: 01-514-3213
In stock
NSN: 5331-01-514-3213
FSC Code: 5331
MPN: 1079976