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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.

5331-01-435-5222 (10-6000S015-ST)

NIIN: 01-435-5222
In stock
NSN: 5331-01-435-5222
FSC Code: 5331
MPN: 106000S015ST

5331-01-435-5224 (10-6000S015-ST)

NIIN: 01-435-5224
In stock
NSN: 5331-01-435-5224
FSC Code: 5331
MPN: 106000S015ST

5331-01-350-2981 (237-6016)

NIIN: 01-350-2981
In stock
NSN: 5331-01-350-2981
FSC Code: 5331
MPN: 2376016

5331-01-456-5476 (105LB-214-GC)

NIIN: 01-456-5476
In stock
NSN: 5331-01-456-5476
FSC Code: 5331
MPN: 105LB214GC

5331-00-263-7926 (317S8)

NIIN: 00-263-7926
In stock
NSN: 5331-00-263-7926
FSC Code: 5331
MPN: 317S8

5331-00-297-6023 (317S6)

NIIN: 00-297-6023
In stock
NSN: 5331-00-297-6023
FSC Code: 5331
MPN: 317S6

5331-01-077-5227 (317S20)

NIIN: 01-077-5227
In stock
NSN: 5331-01-077-5227
FSC Code: 5331
MPN: 317S20

5331-00-263-7935 (317S21)

NIIN: 00-263-7935
In stock
NSN: 5331-00-263-7935
FSC Code: 5331
MPN: 317S21

5331-00-360-2517 (317S27)

NIIN: 00-360-2517
In stock
NSN: 5331-00-360-2517
FSC Code: 5331
MPN: 317S27

5331-00-360-2516 (317S26)

NIIN: 00-360-2516
In stock
NSN: 5331-00-360-2516
FSC Code: 5331
MPN: 317S26

5331-00-291-9661 (317S5)

NIIN: 00-291-9661
In stock
NSN: 5331-00-291-9661
FSC Code: 5331
MPN: 317S5

5331-00-291-9660 (317S4)

NIIN: 00-291-9660
In stock
NSN: 5331-00-291-9660
FSC Code: 5331
MPN: 317S4

5331-01-078-5123 (317S18)

NIIN: 01-078-5123
In stock
NSN: 5331-01-078-5123
FSC Code: 5331
MPN: 317S18

5331-00-246-4823 (317S2)

NIIN: 00-246-4823
In stock
NSN: 5331-00-246-4823
FSC Code: 5331
MPN: 317S2

5331-01-078-2380 (317S17)

NIIN: 01-078-2380
In stock
NSN: 5331-01-078-2380
FSC Code: 5331
MPN: 317S17

5331-00-263-7927 (317S11)

NIIN: 00-263-7927
In stock
NSN: 5331-00-263-7927
FSC Code: 5331
MPN: 317S11

5331-00-263-7930 (317S12)

NIIN: 00-263-7930
In stock
NSN: 5331-00-263-7930
FSC Code: 5331
MPN: 317S12

5331-00-291-9324 (317S10)

NIIN: 00-291-9324
In stock
NSN: 5331-00-291-9324
FSC Code: 5331
MPN: 317S10

5331-00-006-6580 (31768PC4)

NIIN: 00-006-6580
In stock
NSN: 5331-00-006-6580
FSC Code: 5331
MPN: 31768PC4

5331-01-144-1011 (3176197-0126)

NIIN: 01-144-1011
In stock
NSN: 5331-01-144-1011
FSC Code: 5331
MPN: 31761970126

5331-01-190-3140 (3176255-7)

NIIN: 01-190-3140
In stock
NSN: 5331-01-190-3140
FSC Code: 5331
MPN: 31762557

5331-01-226-6752 (3176255-5)

NIIN: 01-226-6752
In stock
NSN: 5331-01-226-6752
FSC Code: 5331
MPN: 31762555

5331-01-102-5601 (3176197-0238)

NIIN: 01-102-5601
In stock
NSN: 5331-01-102-5601
FSC Code: 5331
MPN: 31761970238

5331-01-141-7201 (3176197-0215)

NIIN: 01-141-7201
In stock
NSN: 5331-01-141-7201
FSC Code: 5331
MPN: 31761970215

5331-01-190-7440 (31-75102-3020-4)

NIIN: 01-190-7440
In stock
NSN: 5331-01-190-7440
FSC Code: 5331
MPN: 317510230204

5331-01-190-7442 (31-75102-3020-4)

NIIN: 01-190-7442
In stock
NSN: 5331-01-190-7442
FSC Code: 5331
MPN: 317510230204

5331-01-190-7441 (31-75102-3020-4)

NIIN: 01-190-7441
In stock
NSN: 5331-01-190-7441
FSC Code: 5331
MPN: 317510230204

5331-01-191-0283 (31-75102-3020-4)

NIIN: 01-191-0283
In stock
NSN: 5331-01-191-0283
FSC Code: 5331
MPN: 317510230204

5331-01-191-0282 (31-75102-3020-4)

NIIN: 01-191-0282
In stock
NSN: 5331-01-191-0282
FSC Code: 5331
MPN: 317510230204

5331-01-200-6007 (317443-03-8)

NIIN: 01-200-6007
In stock
NSN: 5331-01-200-6007
FSC Code: 5331
MPN: 317443038

5331-01-258-8242 (3174291-4)

NIIN: 01-258-8242
In stock
NSN: 5331-01-258-8242
FSC Code: 5331
MPN: 31742914

5331-01-258-8240 (3174291-2)

NIIN: 01-258-8240
In stock
NSN: 5331-01-258-8240
FSC Code: 5331
MPN: 31742912

5331-01-258-8241 (3174291-3)

NIIN: 01-258-8241
In stock
NSN: 5331-01-258-8241
FSC Code: 5331
MPN: 31742913

5331-01-258-8239 (3174291-1)

NIIN: 01-258-8239
In stock
NSN: 5331-01-258-8239
FSC Code: 5331
MPN: 31742911

5331-01-129-0632 (3-17330)

NIIN: 01-129-0632
In stock
NSN: 5331-01-129-0632
FSC Code: 5331
MPN: 317330

5331-01-201-0151 (317303-12-0)

NIIN: 01-201-0151
In stock
NSN: 5331-01-201-0151
FSC Code: 5331
MPN: 317303120

5331-01-313-7871 (317303-26-0)

NIIN: 01-313-7871
In stock
NSN: 5331-01-313-7871
FSC Code: 5331
MPN: 317303260

5331-01-106-4334 (317044223PIECE12)

NIIN: 01-106-4334
In stock
NSN: 5331-01-106-4334
FSC Code: 5331
MPN: 317044223PIECE12

5331-00-801-8530 (3-16TLC)

NIIN: 00-801-8530
In stock
NSN: 5331-00-801-8530
FSC Code: 5331
MPN: 316TLC

5331-00-086-2460 (3-16E515-8)

NIIN: 00-086-2460
In stock
NSN: 5331-00-086-2460
FSC Code: 5331
MPN: 316E5158

5331-00-973-8160 (3-16L449-6)

NIIN: 00-973-8160
In stock
NSN: 5331-00-973-8160
FSC Code: 5331
MPN: 316L4496

5331-01-024-6302 (3-16E540-8)

NIIN: 01-024-6302
In stock
NSN: 5331-01-024-6302
FSC Code: 5331
MPN: 316E5408

5331-01-195-8878 (3169-N-2EP)

NIIN: 01-195-8878
In stock
NSN: 5331-01-195-8878
FSC Code: 5331
MPN: 3169N2EP

5331-01-466-0695 (10561-11)

NIIN: 01-466-0695
In stock
NSN: 5331-01-466-0695
FSC Code: 5331
MPN: 1056111

5331-01-521-1348 (10561-09)

NIIN: 01-521-1348
In stock
NSN: 5331-01-521-1348
FSC Code: 5331
MPN: 1056109

5331-01-392-3462 (1055V)

NIIN: 01-392-3462
In stock
NSN: 5331-01-392-3462
FSC Code: 5331
MPN: 1055V

5331-01-549-8141 (10554998-3)

NIIN: 01-549-8141
In stock
NSN: 5331-01-549-8141
FSC Code: 5331
MPN: 105549983

5331-01-541-3969 (2-017C1124-70)

NIIN: 01-541-3969
In stock
NSN: 5331-01-541-3969
FSC Code: 5331
MPN: 2017C112470