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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.

5331-01-300-0366 (70930861)

NIIN: 01-300-0366
In stock
NSN: 5331-01-300-0366
FSC Code: 5331
MPN: 70930861

5331-01-142-7066 (70925743)

NIIN: 01-142-7066
In stock
NSN: 5331-01-142-7066
FSC Code: 5331
MPN: 70925743

5331-01-329-0867 (70929122)

NIIN: 01-329-0867
In stock
NSN: 5331-01-329-0867
FSC Code: 5331
MPN: 70929122

5331-01-333-4465 (73038765)

NIIN: 01-333-4465
In stock
NSN: 5331-01-333-4465
FSC Code: 5331
MPN: 73038765

5331-01-312-9926 (73067633)

NIIN: 01-312-9926
In stock
NSN: 5331-01-312-9926
FSC Code: 5331
MPN: 73067633

5331-01-312-9927 (73134403)

NIIN: 01-312-9927
In stock
NSN: 5331-01-312-9927
FSC Code: 5331
MPN: 73134403

5331-01-312-9925 (73138996)

NIIN: 01-312-9925
In stock
NSN: 5331-01-312-9925
FSC Code: 5331
MPN: 73138996

5331-01-277-0169 (73151347)

NIIN: 01-277-0169
In stock
NSN: 5331-01-277-0169
FSC Code: 5331
MPN: 73151347

5331-01-313-2977 (73138985)

NIIN: 01-313-2977
In stock
NSN: 5331-01-313-2977
FSC Code: 5331
MPN: 73138985

5331-01-277-0939 (73151279)

NIIN: 01-277-0939
In stock
NSN: 5331-01-277-0939
FSC Code: 5331
MPN: 73151279

5331-01-313-4958 (73138980)

NIIN: 01-313-4958
In stock
NSN: 5331-01-313-4958
FSC Code: 5331
MPN: 73138980

5331-01-279-2229 (73151356)

NIIN: 01-279-2229
In stock
NSN: 5331-01-279-2229
FSC Code: 5331
MPN: 73151356

5331-01-277-0168 (73151360)

NIIN: 01-277-0168
In stock
NSN: 5331-01-277-0168
FSC Code: 5331
MPN: 73151360

5331-01-279-2230 (73153080)

NIIN: 01-279-2230
In stock
NSN: 5331-01-279-2230
FSC Code: 5331
MPN: 73153080

5331-01-334-9958 (74000666)

NIIN: 01-334-9958
In stock
NSN: 5331-01-334-9958
FSC Code: 5331
MPN: 74000666

5331-01-333-5192 (74000667)

NIIN: 01-333-5192
In stock
NSN: 5331-01-333-5192
FSC Code: 5331
MPN: 74000667

5331-01-333-5193 (74000669)

NIIN: 01-333-5193
In stock
NSN: 5331-01-333-5193
FSC Code: 5331
MPN: 74000669

5331-01-287-2830 (73153081)

NIIN: 01-287-2830
In stock
NSN: 5331-01-287-2830
FSC Code: 5331
MPN: 73153081

5331-01-277-0181 (74020016)

NIIN: 01-277-0181
In stock
NSN: 5331-01-277-0181
FSC Code: 5331
MPN: 74020016

5331-01-292-3147 (74023827)

NIIN: 01-292-3147
In stock
NSN: 5331-01-292-3147
FSC Code: 5331
MPN: 74023827

5331-01-313-2976 (74055195)

NIIN: 01-313-2976
In stock
NSN: 5331-01-313-2976
FSC Code: 5331
MPN: 74055195

5331-01-326-4779 (74028875)

NIIN: 01-326-4779
In stock
NSN: 5331-01-326-4779
FSC Code: 5331
MPN: 74028875

5331-01-312-9928 (74056132)

NIIN: 01-312-9928
In stock
NSN: 5331-01-312-9928
FSC Code: 5331
MPN: 74056132

5331-01-312-9923 (74061212)

NIIN: 01-312-9923
In stock
NSN: 5331-01-312-9923
FSC Code: 5331
MPN: 74061212

5331-01-275-7792 (76003051)

NIIN: 01-275-7792
In stock
NSN: 5331-01-275-7792
FSC Code: 5331
MPN: 76003051

5331-01-279-2350 (76003974)

NIIN: 01-279-2350
In stock
NSN: 5331-01-279-2350
FSC Code: 5331
MPN: 76003974

5331-00-407-4145 (77592799)

NIIN: 00-407-4145
In stock
NSN: 5331-00-407-4145
FSC Code: 5331
MPN: 77592799

5331-01-279-2228 (79023160)

NIIN: 01-279-2228
In stock
NSN: 5331-01-279-2228
FSC Code: 5331
MPN: 79023160

5331-01-279-2231 (79065568)

NIIN: 01-279-2231
In stock
NSN: 5331-01-279-2231
FSC Code: 5331
MPN: 79065568

5331-01-329-1888 (79065569)

NIIN: 01-329-1888
In stock
NSN: 5331-01-329-1888
FSC Code: 5331
MPN: 79065569

5331-01-277-0167 (79043163)

NIIN: 01-277-0167
In stock
NSN: 5331-01-277-0167
FSC Code: 5331
MPN: 79043163

5331-01-222-5581 (82401200)

NIIN: 01-222-5581
In stock
NSN: 5331-01-222-5581
FSC Code: 5331
MPN: 82401200

5331-00-365-0208 (86512844)

NIIN: 00-365-0208
In stock
NSN: 5331-00-365-0208
FSC Code: 5331
MPN: 86512844

5331-01-116-8026 (86625090)

NIIN: 01-116-8026
In stock
NSN: 5331-01-116-8026
FSC Code: 5331
MPN: 86625090

5331-00-138-5822 (88161167)

NIIN: 00-138-5822
In stock
NSN: 5331-00-138-5822
FSC Code: 5331
MPN: 88161167

5331-00-117-9794 (91000542)

NIIN: 00-117-9794
In stock
NSN: 5331-00-117-9794
FSC Code: 5331
MPN: 91000542

5331-01-266-2402 (91256320)

NIIN: 01-266-2402
In stock
NSN: 5331-01-266-2402
FSC Code: 5331
MPN: 91256320

5331-00-845-9673 (91501163)

NIIN: 00-845-9673
In stock
NSN: 5331-00-845-9673
FSC Code: 5331
MPN: 91501163

5331-00-915-5197 (91501164)

NIIN: 00-915-5197
In stock
NSN: 5331-00-915-5197
FSC Code: 5331
MPN: 91501164

5331-00-882-0951 (91501165)

NIIN: 00-882-0951
In stock
NSN: 5331-00-882-0951
FSC Code: 5331
MPN: 91501165

5331-00-836-3825 (91501170)

NIIN: 00-836-3825
In stock
NSN: 5331-00-836-3825
FSC Code: 5331
MPN: 91501170

5331-01-059-0978 (92074139)

NIIN: 01-059-0978
In stock
NSN: 5331-01-059-0978
FSC Code: 5331
MPN: 92074139

5331-01-032-2244 (92074021)

NIIN: 01-032-2244
In stock
NSN: 5331-01-032-2244
FSC Code: 5331
MPN: 92074021

5331-01-320-5826 (92200030)

NIIN: 01-320-5826
In stock
NSN: 5331-01-320-5826
FSC Code: 5331
MPN: 92200030

5331-01-320-2377 (92200070)

NIIN: 01-320-2377
In stock
NSN: 5331-01-320-2377
FSC Code: 5331
MPN: 92200070

5331-01-320-5827 (92300600)

NIIN: 01-320-5827
In stock
NSN: 5331-01-320-5827
FSC Code: 5331
MPN: 92300600

5331-01-181-4946 (93007522)

NIIN: 01-181-4946
In stock
NSN: 5331-01-181-4946
FSC Code: 5331
MPN: 93007522

5331-01-181-4945 (93008233)

NIIN: 01-181-4945
In stock
NSN: 5331-01-181-4945
FSC Code: 5331
MPN: 93008233