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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.

5331-01-143-6327 (RS900U-229)

NIIN: 01-143-6327
In stock
NSN: 5331-01-143-6327
FSC Code: 5331
MPN: RS900U229

5331-01-205-8988 (RS900L045)

NIIN: 01-205-8988
In stock
NSN: 5331-01-205-8988
FSC Code: 5331
MPN: RS900L045

5331-00-813-9988 (RS900AN214)

NIIN: 00-813-9988
In stock
NSN: 5331-00-813-9988
FSC Code: 5331
MPN: RS900AN214

5331-01-143-6326 (RS900-210)

NIIN: 01-143-6326
In stock
NSN: 5331-01-143-6326
FSC Code: 5331
MPN: RS900210

5331-00-618-2535 (RS900AK11)

NIIN: 00-618-2535
In stock
NSN: 5331-00-618-2535
FSC Code: 5331
MPN: RS900AK11

5331-01-550-1230 (C254-42025)

NIIN: 01-550-1230
In stock
NSN: 5331-01-550-1230
FSC Code: 5331
MPN: C25442025

5331-01-173-6595 (RS30800-100)

NIIN: 01-173-6595
In stock
NSN: 5331-01-173-6595
FSC Code: 5331
MPN: RS30800100

5331-01-173-6596 (RS30000-47)

NIIN: 01-173-6596
In stock
NSN: 5331-01-173-6596
FSC Code: 5331
MPN: RS3000047

5331-00-879-6653 (RS26110-01529)

NIIN: 00-879-6653
In stock
NSN: 5331-00-879-6653
FSC Code: 5331
MPN: RS2611001529

5331-01-542-4055 (C23-009-2110)

NIIN: 01-542-4055
In stock
NSN: 5331-01-542-4055
FSC Code: 5331
MPN: C230092110

5331-01-132-5777 (RS26110-03229)

NIIN: 01-132-5777
In stock
NSN: 5331-01-132-5777
FSC Code: 5331
MPN: RS2611003229

5331-01-132-5776 (RS26110-01929)

NIIN: 01-132-5776
In stock
NSN: 5331-01-132-5776
FSC Code: 5331
MPN: RS2611001929

5331-01-143-6325 (RS213U-56)

NIIN: 01-143-6325
In stock
NSN: 5331-01-143-6325
FSC Code: 5331
MPN: RS213U56

5331-00-514-3430 (RS174-48)

NIIN: 00-514-3430
In stock
NSN: 5331-00-514-3430
FSC Code: 5331
MPN: RS17448

5331-01-130-9810 (RS171)

NIIN: 01-130-9810
In stock
NSN: 5331-01-130-9810
FSC Code: 5331
MPN: RS171

5331-01-467-5183 (C2-030S-70AT)

NIIN: 01-467-5183
In stock
NSN: 5331-01-467-5183
FSC Code: 5331
MPN: C2030S70AT

5331-01-422-8204 (C2-024155-002)

NIIN: 01-422-8204
In stock
NSN: 5331-01-422-8204
FSC Code: 5331
MPN: C2024155002

5331-01-422-8205 (C2-024155-004)

NIIN: 01-422-8205
In stock
NSN: 5331-01-422-8205
FSC Code: 5331
MPN: C2024155004

5331-01-307-8580 (RR192V)

NIIN: 01-307-8580
In stock
NSN: 5331-01-307-8580
FSC Code: 5331
MPN: RR192V

5331-01-189-8333 (RR014)

NIIN: 01-189-8333
In stock
NSN: 5331-01-189-8333
FSC Code: 5331
MPN: RR014

5331-00-812-8733 (RR12394)

NIIN: 00-812-8733
In stock
NSN: 5331-00-812-8733
FSC Code: 5331
MPN: RR12394

5331-01-080-9067 (RR1181)

NIIN: 01-080-9067
In stock
NSN: 5331-01-080-9067
FSC Code: 5331
MPN: RR1181

5331-00-122-5717 (RPH42068A)

NIIN: 00-122-5717
In stock
NSN: 5331-00-122-5717
FSC Code: 5331
MPN: RPH42068A

5331-01-382-8928 (C-186-1108)

NIIN: 01-382-8928
In stock
NSN: 5331-01-382-8928
FSC Code: 5331
MPN: C1861108

5331-01-451-0457 (C17-55)

NIIN: 01-451-0457
In stock
NSN: 5331-01-451-0457
FSC Code: 5331
MPN: C1755

5331-01-355-4807 (C-16891-2)

NIIN: 01-355-4807
In stock
NSN: 5331-01-355-4807
FSC Code: 5331
MPN: C168912

5331-01-177-8161 (RP-2125)

NIIN: 01-177-8161
In stock
NSN: 5331-01-177-8161
FSC Code: 5331
MPN: RP2125

5331-00-472-3165 (RNG92)

NIIN: 00-472-3165
In stock
NSN: 5331-00-472-3165
FSC Code: 5331
MPN: RNG92

5331-01-277-0930 (RNG-891)

NIIN: 01-277-0930
In stock
NSN: 5331-01-277-0930
FSC Code: 5331
MPN: RNG891

5331-00-782-0070 (RNG-818)

NIIN: 00-782-0070
In stock
NSN: 5331-00-782-0070
FSC Code: 5331
MPN: RNG818

5331-00-472-3164 (RNG90)

NIIN: 00-472-3164
In stock
NSN: 5331-00-472-3164
FSC Code: 5331
MPN: RNG90

5331-01-176-7944 (RNG-79)

NIIN: 01-176-7944
In stock
NSN: 5331-01-176-7944
FSC Code: 5331
MPN: RNG79

5331-01-277-0929 (RNG-660)

NIIN: 01-277-0929
In stock
NSN: 5331-01-277-0929
FSC Code: 5331
MPN: RNG660

5331-00-802-8134 (RNG53)

NIIN: 00-802-8134
In stock
NSN: 5331-00-802-8134
FSC Code: 5331
MPN: RNG53

5331-01-277-0928 (RNG-655)

NIIN: 01-277-0928
In stock
NSN: 5331-01-277-0928
FSC Code: 5331
MPN: RNG655

5331-01-277-0932 (RNG-39)

NIIN: 01-277-0932
In stock
NSN: 5331-01-277-0932
FSC Code: 5331
MPN: RNG39

5331-01-291-0018 (RNG-639)

NIIN: 01-291-0018
In stock
NSN: 5331-01-291-0018
FSC Code: 5331
MPN: RNG639

5331-01-278-1747 (RNG-656)

NIIN: 01-278-1747
In stock
NSN: 5331-01-278-1747
FSC Code: 5331
MPN: RNG656

5331-00-953-6619 (RNG58)

NIIN: 00-953-6619
In stock
NSN: 5331-00-953-6619
FSC Code: 5331
MPN: RNG58

5331-01-157-1889 (RNG-407)

NIIN: 01-157-1889
In stock
NSN: 5331-01-157-1889
FSC Code: 5331
MPN: RNG407

5331-01-277-0931 (RNG-470)

NIIN: 01-277-0931
In stock
NSN: 5331-01-277-0931
FSC Code: 5331
MPN: RNG470

5331-01-278-1746 (RNG-500)

NIIN: 01-278-1746
In stock
NSN: 5331-01-278-1746
FSC Code: 5331
MPN: RNG500

5331-01-277-0927 (RNG-468)

NIIN: 01-277-0927
In stock
NSN: 5331-01-277-0927
FSC Code: 5331
MPN: RNG468

5331-00-985-4689 (RNG-38)

NIIN: 00-985-4689
In stock
NSN: 5331-00-985-4689
FSC Code: 5331
MPN: RNG38

5331-01-277-0933 (RNG-484)

NIIN: 01-277-0933
In stock
NSN: 5331-01-277-0933
FSC Code: 5331
MPN: RNG484

5331-01-260-8951 (RNG254)

NIIN: 01-260-8951
In stock
NSN: 5331-01-260-8951
FSC Code: 5331
MPN: RNG254

5331-01-260-8950 (RNG266)

NIIN: 01-260-8950
In stock
NSN: 5331-01-260-8950
FSC Code: 5331
MPN: RNG266

5331-01-278-1745 (RNG-353)

NIIN: 01-278-1745
In stock
NSN: 5331-01-278-1745
FSC Code: 5331
MPN: RNG353