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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.

5331-00-826-1176 (10159976)

NIIN: 00-826-1176
In stock
NSN: 5331-00-826-1176
FSC Code: 5331
MPN: 10159976

5331-00-250-2076 (10159974)

NIIN: 00-250-2076
In stock
NSN: 5331-00-250-2076
FSC Code: 5331
MPN: 10159974

5331-00-008-7877 (10159962)

NIIN: 00-008-7877
In stock
NSN: 5331-00-008-7877
FSC Code: 5331
MPN: 10159962

5331-00-368-7516 (10159975)

NIIN: 00-368-7516
In stock
NSN: 5331-00-368-7516
FSC Code: 5331
MPN: 10159975

5331-01-118-1206 (10159986)

NIIN: 01-118-1206
In stock
NSN: 5331-01-118-1206
FSC Code: 5331
MPN: 10159986

5331-01-274-2913 (10159959)

NIIN: 01-274-2913
In stock
NSN: 5331-01-274-2913
FSC Code: 5331
MPN: 10159959

5331-00-053-1636 (10159980)

NIIN: 00-053-1636
In stock
NSN: 5331-00-053-1636
FSC Code: 5331
MPN: 10159980

5331-01-118-1207 (10159987)

NIIN: 01-118-1207
In stock
NSN: 5331-01-118-1207
FSC Code: 5331
MPN: 10159987

5331-00-527-5997 (10159981)

NIIN: 00-527-5997
In stock
NSN: 5331-00-527-5997
FSC Code: 5331
MPN: 10159981

5331-01-241-1557 (10159960)

NIIN: 01-241-1557
In stock
NSN: 5331-01-241-1557
FSC Code: 5331
MPN: 10159960

5331-00-401-4802 (10159984)

NIIN: 00-401-4802
In stock
NSN: 5331-00-401-4802
FSC Code: 5331
MPN: 10159984

5331-00-401-4906 (10159988)

NIIN: 00-401-4906
In stock
NSN: 5331-00-401-4906
FSC Code: 5331
MPN: 10159988

5331-01-079-7302 (10159998)

NIIN: 01-079-7302
In stock
NSN: 5331-01-079-7302
FSC Code: 5331
MPN: 10159998

5331-00-529-9349 (10159985)

NIIN: 00-529-9349
In stock
NSN: 5331-00-529-9349
FSC Code: 5331
MPN: 10159985

5331-01-080-0041 (10159995)

NIIN: 01-080-0041
In stock
NSN: 5331-01-080-0041
FSC Code: 5331
MPN: 10159995

5331-01-005-0511 (10159983)

NIIN: 01-005-0511
In stock
NSN: 5331-01-005-0511
FSC Code: 5331
MPN: 10159983

5331-00-385-9280 (10159992)

NIIN: 00-385-9280
In stock
NSN: 5331-00-385-9280
FSC Code: 5331
MPN: 10159992

5331-01-005-0515 (10159989)

NIIN: 01-005-0515
In stock
NSN: 5331-01-005-0515
FSC Code: 5331
MPN: 10159989

5331-01-079-6812 (10159996)

NIIN: 01-079-6812
In stock
NSN: 5331-01-079-6812
FSC Code: 5331
MPN: 10159996

5331-00-480-1853 (10159993)

NIIN: 00-480-1853
In stock
NSN: 5331-00-480-1853
FSC Code: 5331
MPN: 10159993

5331-00-165-4562 (10159997)

NIIN: 00-165-4562
In stock
NSN: 5331-00-165-4562
FSC Code: 5331
MPN: 10159997

5331-00-165-1957 (10160556)

NIIN: 00-165-1957
In stock
NSN: 5331-00-165-1957
FSC Code: 5331
MPN: 10160556

5331-01-007-4898 (10160553)

NIIN: 01-007-4898
In stock
NSN: 5331-01-007-4898
FSC Code: 5331
MPN: 10160553

5331-00-008-7873 (10163192)

NIIN: 00-008-7873
In stock
NSN: 5331-00-008-7873
FSC Code: 5331
MPN: 10163192

5331-00-014-9545 (10163193)

NIIN: 00-014-9545
In stock
NSN: 5331-00-014-9545
FSC Code: 5331
MPN: 10163193

5331-00-031-2916 (10163195)

NIIN: 00-031-2916
In stock
NSN: 5331-00-031-2916
FSC Code: 5331
MPN: 10163195

5331-00-008-5857 (10163191)

NIIN: 00-008-5857
In stock
NSN: 5331-00-008-5857
FSC Code: 5331
MPN: 10163191

5331-00-127-3929 (10163201)

NIIN: 00-127-3929
In stock
NSN: 5331-00-127-3929
FSC Code: 5331
MPN: 10163201

5331-00-166-5986 (10163209)

NIIN: 00-166-5986
In stock
NSN: 5331-00-166-5986
FSC Code: 5331
MPN: 10163209

5331-00-052-5267 (10163199)

NIIN: 00-052-5267
In stock
NSN: 5331-00-052-5267
FSC Code: 5331
MPN: 10163199

5331-00-060-4325 (10163200)

NIIN: 00-060-4325
In stock
NSN: 5331-00-060-4325
FSC Code: 5331
MPN: 10163200

5331-00-019-9481 (10163194)

NIIN: 00-019-9481
In stock
NSN: 5331-00-019-9481
FSC Code: 5331
MPN: 10163194

5331-00-166-1101 (10163208)

NIIN: 00-166-1101
In stock
NSN: 5331-00-166-1101
FSC Code: 5331
MPN: 10163208

5331-00-038-3361 (10163196)

NIIN: 00-038-3361
In stock
NSN: 5331-00-038-3361
FSC Code: 5331
MPN: 10163196

5331-00-167-5137 (10163216)

NIIN: 00-167-5137
In stock
NSN: 5331-00-167-5137
FSC Code: 5331
MPN: 10163216

5331-00-165-1938 (10163202)

NIIN: 00-165-1938
In stock
NSN: 5331-00-165-1938
FSC Code: 5331
MPN: 10163202

5331-00-167-5129 (10163215)

NIIN: 00-167-5129
In stock
NSN: 5331-00-167-5129
FSC Code: 5331
MPN: 10163215

5331-00-166-8399 (10163212)

NIIN: 00-166-8399
In stock
NSN: 5331-00-166-8399
FSC Code: 5331
MPN: 10163212

5331-00-166-8398 (10163211)

NIIN: 00-166-8398
In stock
NSN: 5331-00-166-8398
FSC Code: 5331
MPN: 10163211

5331-00-169-0532 (10163217)

NIIN: 00-169-0532
In stock
NSN: 5331-00-169-0532
FSC Code: 5331
MPN: 10163217

5331-00-248-3850 (10163226)

NIIN: 00-248-3850
In stock
NSN: 5331-00-248-3850
FSC Code: 5331
MPN: 10163226

5331-00-251-9368 (10163234)

NIIN: 00-251-9368
In stock
NSN: 5331-00-251-9368
FSC Code: 5331
MPN: 10163234

5331-00-245-7175 (10163221)

NIIN: 00-245-7175
In stock
NSN: 5331-00-245-7175
FSC Code: 5331
MPN: 10163221

5331-00-265-1077 (10163244)

NIIN: 00-265-1077
In stock
NSN: 5331-00-265-1077
FSC Code: 5331
MPN: 10163244

5331-00-250-0225 (10163228)

NIIN: 00-250-0225
In stock
NSN: 5331-00-250-0225
FSC Code: 5331
MPN: 10163228

5331-00-265-1085 (10163245)

NIIN: 00-265-1085
In stock
NSN: 5331-00-265-1085
FSC Code: 5331
MPN: 10163245

5331-00-202-0807 (10163220)

NIIN: 00-202-0807
In stock
NSN: 5331-00-202-0807
FSC Code: 5331
MPN: 10163220

5331-00-265-1095 (10163247)

NIIN: 00-265-1095
In stock
NSN: 5331-00-265-1095
FSC Code: 5331
MPN: 10163247