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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.

5331-00-854-7174 (S1423CAF9900)

NIIN: 00-854-7174
In stock
NSN: 5331-00-854-7174
FSC Code: 5331
MPN: S1423CAF9900

5331-00-850-2899 (S1423BBT9900)

NIIN: 00-850-2899
In stock
NSN: 5331-00-850-2899
FSC Code: 5331
MPN: S1423BBT9900

5331-00-850-2896 (S1423BRR9900)

NIIN: 00-850-2896
In stock
NSN: 5331-00-850-2896
FSC Code: 5331
MPN: S1423BRR9900

5331-00-850-2897 (S1423BAA9900)

NIIN: 00-850-2897
In stock
NSN: 5331-00-850-2897
FSC Code: 5331
MPN: S1423BAA9900

5331-00-148-1310 (S1401-7A)

NIIN: 00-148-1310
In stock
NSN: 5331-00-148-1310
FSC Code: 5331
MPN: S14017A

5331-00-836-5016 (S1402-8)

NIIN: 00-836-5016
In stock
NSN: 5331-00-836-5016
FSC Code: 5331
MPN: S14028

5331-00-529-3057 (S1400-73CETHYLENEPR0PYLENE)

NIIN: 00-529-3057
In stock
NSN: 5331-00-529-3057
FSC Code: 5331
MPN: S140073CETHYLENEPR0PYLENE

5331-00-940-8421 (S1400-41)

NIIN: 00-940-8421
In stock
NSN: 5331-00-940-8421
FSC Code: 5331
MPN: S140041

5331-00-232-8628 (S1400-29)

NIIN: 00-232-8628
In stock
NSN: 5331-00-232-8628
FSC Code: 5331
MPN: S140029

5331-00-689-6468 (S1400-11)

NIIN: 00-689-6468
In stock
NSN: 5331-00-689-6468
FSC Code: 5331
MPN: S140011

5331-00-441-3195 (S1400-21)

NIIN: 00-441-3195
In stock
NSN: 5331-00-441-3195
FSC Code: 5331
MPN: S140021

5331-00-814-0725 (S1400-41-4)

NIIN: 00-814-0725
In stock
NSN: 5331-00-814-0725
FSC Code: 5331
MPN: S1400414

5331-01-330-8343 (S13126-27PH99)

NIIN: 01-330-8343
In stock
NSN: 5331-01-330-8343
FSC Code: 5331
MPN: S1312627PH99

5331-00-136-2807 (S12563-212)

NIIN: 00-136-2807
In stock
NSN: 5331-00-136-2807
FSC Code: 5331
MPN: S12563212

5331-01-023-9770 (S12547-223N)

NIIN: 01-023-9770
In stock
NSN: 5331-01-023-9770
FSC Code: 5331
MPN: S12547223N

5331-01-142-1354 (S-125-0400-10)

NIIN: 01-142-1354
In stock
NSN: 5331-01-142-1354
FSC Code: 5331
MPN: S125040010

5331-00-924-5880 (S12068-013)

NIIN: 00-924-5880
In stock
NSN: 5331-00-924-5880
FSC Code: 5331
MPN: S12068013

5331-01-240-1839 (S11732-136)

NIIN: 01-240-1839
In stock
NSN: 5331-01-240-1839
FSC Code: 5331
MPN: S11732136

5331-01-271-5778 (S11732-145)

NIIN: 01-271-5778
In stock
NSN: 5331-01-271-5778
FSC Code: 5331
MPN: S11732145

5331-01-106-4369 (S11732-335)

NIIN: 01-106-4369
In stock
NSN: 5331-01-106-4369
FSC Code: 5331
MPN: S11732335

5331-01-015-1707 (S11732-012)

NIIN: 01-015-1707
In stock
NSN: 5331-01-015-1707
FSC Code: 5331
MPN: S11732012

5331-01-151-5455 (S11717-233)

NIIN: 01-151-5455
In stock
NSN: 5331-01-151-5455
FSC Code: 5331
MPN: S11717233

5331-00-577-1333 (S11717-132)

NIIN: 00-577-1333
In stock
NSN: 5331-00-577-1333
FSC Code: 5331
MPN: S11717132

5331-00-901-8674 (S11717-129)

NIIN: 00-901-8674
In stock
NSN: 5331-00-901-8674
FSC Code: 5331
MPN: S11717129

5331-00-558-9056 (S11717-136)

NIIN: 00-558-9056
In stock
NSN: 5331-00-558-9056
FSC Code: 5331
MPN: S11717136

5331-01-389-1236 (C47060119)

NIIN: 01-389-1236
In stock
NSN: 5331-01-389-1236
FSC Code: 5331
MPN: C47060119

5331-01-434-3771 (C47040141)

NIIN: 01-434-3771
In stock
NSN: 5331-01-434-3771
FSC Code: 5331
MPN: C47040141

5331-00-145-5902 (S11214-261)

NIIN: 00-145-5902
In stock
NSN: 5331-00-145-5902
FSC Code: 5331
MPN: S11214261

5331-01-133-4883 (S112229)

NIIN: 01-133-4883
In stock
NSN: 5331-01-133-4883
FSC Code: 5331
MPN: S112229

5331-00-997-3015 (S1120-181)

NIIN: 00-997-3015
In stock
NSN: 5331-00-997-3015
FSC Code: 5331
MPN: S1120181

5331-01-242-0445 (S1-114BA)

NIIN: 01-242-0445
In stock
NSN: 5331-01-242-0445
FSC Code: 5331
MPN: S1114BA

5331-01-119-6706 (S11052-17Q5)

NIIN: 01-119-6706
In stock
NSN: 5331-01-119-6706
FSC Code: 5331
MPN: S1105217Q5

5331-01-189-3634 (S110031)

NIIN: 01-189-3634
In stock
NSN: 5331-01-189-3634
FSC Code: 5331
MPN: S110031

5331-00-903-5114 (S10A070-199)

NIIN: 00-903-5114
In stock
NSN: 5331-00-903-5114
FSC Code: 5331
MPN: S10A070199

5331-00-001-9779 (S10A070-149)

NIIN: 00-001-9779
In stock
NSN: 5331-00-001-9779
FSC Code: 5331
MPN: S10A070149

5331-01-381-0832 (C4026-0.50IN)

NIIN: 01-381-0832
In stock
NSN: 5331-01-381-0832
FSC Code: 5331
MPN: C4026050IN

5331-01-380-0833 (C4026-.50)

NIIN: 01-380-0833
In stock
NSN: 5331-01-380-0833
FSC Code: 5331
MPN: C402650

5331-01-380-0782 (C4026-.50IN)

NIIN: 01-380-0782
In stock
NSN: 5331-01-380-0782
FSC Code: 5331
MPN: C402650IN

5331-01-380-0787 (C4026-.50IN)

NIIN: 01-380-0787
In stock
NSN: 5331-01-380-0787
FSC Code: 5331
MPN: C402650IN

5331-01-371-2047 (C3EHCST-187-026)

NIIN: 01-371-2047
In stock
NSN: 5331-01-371-2047
FSC Code: 5331
MPN: C3EHCST187026

5331-01-299-3149 (S102CB28)

NIIN: 01-299-3149
In stock
NSN: 5331-01-299-3149
FSC Code: 5331
MPN: S102CB28

5331-00-409-6813 (S1-022A)

NIIN: 00-409-6813
In stock
NSN: 5331-00-409-6813
FSC Code: 5331
MPN: S1022A

5331-00-900-6511 (S101Y8)

NIIN: 00-900-6511
In stock
NSN: 5331-00-900-6511
FSC Code: 5331
MPN: S101Y8

5331-00-182-3083 (S1-020A)

NIIN: 00-182-3083
In stock
NSN: 5331-00-182-3083
FSC Code: 5331
MPN: S1020A

5331-00-057-7457 (S101S25)

NIIN: 00-057-7457
In stock
NSN: 5331-00-057-7457
FSC Code: 5331
MPN: S101S25

5331-01-299-3147 (S101CB34)

NIIN: 01-299-3147
In stock
NSN: 5331-01-299-3147
FSC Code: 5331
MPN: S101CB34

5331-00-901-8316 (S101Y112)

NIIN: 00-901-8316
In stock
NSN: 5331-00-901-8316
FSC Code: 5331
MPN: S101Y112

5331-00-056-7837 (S101S19)

NIIN: 00-056-7837
In stock
NSN: 5331-00-056-7837
FSC Code: 5331
MPN: S101S19