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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.

5331-01-738-1572 (E83908)

NIIN: 01-738-1572 DESC: O-RING
In stock
NSN: 5331-01-738-1572
FSC Code: 5331
MPN: E83908

5331-01-738-5095 (C0873-70 2-039)

NIIN: 01-738-5095 DESC: O-RING
In stock
NSN: 5331-01-738-5095
FSC Code: 5331
MPN: C0873702039

5331-01-738-4851 (87000-ORING)

NIIN: 01-738-4851 DESC: O-RING
In stock
NSN: 5331-01-738-4851
FSC Code: 5331
MPN: 87000ORING

5331-01-738-4301 (2-114S0613-60)

NIIN: 01-738-4301 DESC: O-RING
In stock
NSN: 5331-01-738-4301
FSC Code: 5331
MPN: 2114S061360

5331-01-738-4018 (AS3581-371)

NIIN: 01-738-4018 DESC: O-RING
In stock
NSN: 5331-01-738-4018
FSC Code: 5331
MPN: AS3581371

5331-01-738-1849 (AA55801-018D7)

NIIN: 01-738-1849 DESC: O-RING
In stock
NSN: 5331-01-738-1849
FSC Code: 5331
MPN: AA55801018D7

5331-01-738-5012 (14051-1000-62)

NIIN: 01-738-5012 DESC: O-RING SET
In stock
NSN: 5331-01-738-5012
FSC Code: 5331
MPN: 14051100062

5331-01-738-2763 (2-116-N70)

NIIN: 01-738-2763 DESC: O-RING
In stock
NSN: 5331-01-738-2763
FSC Code: 5331
MPN: 2116N70

5331-01-738-1570 (E82240)

NIIN: 01-738-1570 DESC: O-RING
In stock
NSN: 5331-01-738-1570
FSC Code: 5331
MPN: E82240

5331-01-738-4113 (342357)

NIIN: 01-738-4113 DESC: O-RING
In stock
NSN: 5331-01-738-4113
FSC Code: 5331
MPN: 342357

5331-01-738-3004 (16918-ZVL-B11)

NIIN: 01-738-3004 DESC: O-RING
In stock
NSN: 5331-01-738-3004
FSC Code: 5331
MPN: 16918ZVLB11

5331-01-737-9644 (2-217 NBR)

NIIN: 01-737-9644 DESC: O-RING
In stock
NSN: 5331-01-737-9644
FSC Code: 5331
MPN: 2217NBR

5331-01-738-4930 (4401002-0160)

NIIN: 01-738-4930 DESC: O-RING
In stock
NSN: 5331-01-738-4930
FSC Code: 5331
MPN: 44010020160

5331-01-737-9921 (2-015 N70)

NIIN: 01-737-9921 DESC: O-RING
In stock
NSN: 5331-01-737-9921
FSC Code: 5331
MPN: 2015N70

5331-01-738-2471 (5909.041)

NIIN: 01-738-2471 DESC: O-RING
In stock
NSN: 5331-01-738-2471
FSC Code: 5331
MPN: 5909041

5331-01-738-1979 (11583828-446)

NIIN: 01-738-1979 DESC: O-RING
In stock
NSN: 5331-01-738-1979
FSC Code: 5331
MPN: 11583828446

5331-01-738-1284 (E50265-140-080-33.0INDL-OR)

NIIN: 01-738-1284 DESC: O-RING
In stock
NSN: 5331-01-738-1284
FSC Code: 5331
MPN: E50265140080330INDLOR

5331-01-738-0283 (K-2995-164)

NIIN: 01-738-0283 DESC: O-RING
In stock
NSN: 5331-01-738-0283
FSC Code: 5331
MPN: K2995164

5331-01-738-4114 (201004)

NIIN: 01-738-4114 DESC: O-RING
In stock
NSN: 5331-01-738-4114
FSC Code: 5331
MPN: 201004

5331-01-738-1575 (E83906)

NIIN: 01-738-1575 DESC: O-RING
In stock
NSN: 5331-01-738-1575
FSC Code: 5331
MPN: E83906

5331-01-738-4373 (72209198)

NIIN: 01-738-4373 DESC: O-RING
In stock
NSN: 5331-01-738-4373
FSC Code: 5331
MPN: 72209198

5331-01-738-1413 (A901609-00676)

NIIN: 01-738-1413 DESC: O-RING
In stock
NSN: 5331-01-738-1413
FSC Code: 5331
MPN: A90160900676

5331-01-738-0333 (196271-50285)

NIIN: 01-738-0333 DESC: O-RING
In stock
NSN: 5331-01-738-0333
FSC Code: 5331
MPN: 19627150285

5331-01-738-0153 (D015C692)

NIIN: 01-738-0153 DESC: O-RING
In stock
NSN: 5331-01-738-0153
FSC Code: 5331
MPN: D015C692

5331-01-737-6327 (ISO3601-1-011A-7.65X1.78-N)

NIIN: 01-737-6327 DESC: O-RING
In stock
NSN: 5331-01-737-6327
FSC Code: 5331
MPN: ISO36011011A765X178N

5331-01-738-4025 (D015D147)

NIIN: 01-738-4025 DESC: O-RING
In stock
NSN: 5331-01-738-4025
FSC Code: 5331
MPN: D015D147

5331-01-738-0336 (45299)

NIIN: 01-738-0336 DESC: O-RING
In stock
NSN: 5331-01-738-0336
FSC Code: 5331
MPN: 45299

5331-01-737-9926 (2-017 N70)

NIIN: 01-737-9926 DESC: O-RING
In stock
NSN: 5331-01-737-9926
FSC Code: 5331
MPN: 2017N70

5331-01-737-8532 (P05167)

NIIN: 01-737-8532 DESC: O-RING
In stock
NSN: 5331-01-737-8532
FSC Code: 5331
MPN: P05167

5331-01-737-7534 (MS29513-108)

NIIN: 01-737-7534 DESC: O-RING
In stock
NSN: 5331-01-737-7534
FSC Code: 5331
MPN: MS29513108

5331-01-737-7027 (ISO3601-1-225A-47.22X3.53-N)

NIIN: 01-737-7027 DESC: O-RING
In stock
NSN: 5331-01-737-7027
FSC Code: 5331
MPN: ISO36011225A4722X353N

5331-01-738-0481 (2-014 FKM)

NIIN: 01-738-0481 DESC: O-RING
In stock
NSN: 5331-01-738-0481
FSC Code: 5331
MPN: 2014FKM

5331-01-737-9970 (2-257 E70)

NIIN: 01-737-9970 DESC: O-RING
In stock
NSN: 5331-01-737-9970
FSC Code: 5331
MPN: 2257E70

5331-01-737-6382 (ISO3601-1-042A-82.27X1.78-N)

NIIN: 01-737-6382 DESC: O-RING
In stock
NSN: 5331-01-737-6382
FSC Code: 5331
MPN: ISO36011042A8227X178N

5331-01-737-5791 (LS1145644-1)

NIIN: 01-737-5791 DESC: O-RING
In stock
NSN: 5331-01-737-5791
FSC Code: 5331
MPN: LS11456441

5331-01-738-2495 (11583828-452)

NIIN: 01-738-2495 DESC: O-RING
In stock
NSN: 5331-01-738-2495
FSC Code: 5331
MPN: 11583828452

5331-01-738-1391 (5649-0875-676)

NIIN: 01-738-1391 DESC: O-RING
In stock
NSN: 5331-01-738-1391
FSC Code: 5331
MPN: 56490875676

5331-01-738-0299 (100G)

NIIN: 01-738-0299 DESC: O-RING
In stock
NSN: 5331-01-738-0299
FSC Code: 5331
MPN: 100G

5331-01-737-8515 (P05494)

NIIN: 01-737-8515 DESC: O-RING
In stock
NSN: 5331-01-737-8515
FSC Code: 5331
MPN: P05494

5331-01-737-8455 (27270)

NIIN: 01-737-8455 DESC: O-RING
In stock
NSN: 5331-01-737-8455
FSC Code: 5331
MPN: 27270

5331-01-737-3496 (1174N504)

NIIN: 01-737-3496 DESC: O-RING
In stock
NSN: 5331-01-737-3496
FSC Code: 5331
MPN: 1174N504

5331-01-737-1857 (25360)

NIIN: 01-737-1857 DESC: O-RING
In stock
NSN: 5331-01-737-1857
FSC Code: 5331
MPN: 25360

5331-01-737-7009 (ISO3601-1-155A-101.27X2.62-N)

NIIN: 01-737-7009 DESC: O-RING
In stock
NSN: 5331-01-737-7009
FSC Code: 5331
MPN: ISO36011155A10127X262N

5331-01-737-6660 (N2.50X125)

NIIN: 01-737-6660 DESC: O-RING
In stock
NSN: 5331-01-737-6660
FSC Code: 5331
MPN: N250X125

5331-01-737-1071 (M83248/2-159)

NIIN: 01-737-1071 DESC: O-RING
In stock
NSN: 5331-01-737-1071
FSC Code: 5331
MPN: M832482159

5331-01-737-0195 (4000-4)

NIIN: 01-737-0195 DESC: O-RING
In stock
NSN: 5331-01-737-0195
FSC Code: 5331
MPN: 40004

5331-01-736-2810 (221617)

NIIN: 01-736-2810 DESC: O-RING
In stock
NSN: 5331-01-736-2810
FSC Code: 5331
MPN: 221617

5331-01-737-9252 (P05116)

NIIN: 01-737-9252 DESC: O-RING
In stock
NSN: 5331-01-737-9252
FSC Code: 5331
MPN: P05116