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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.

5331-01-025-6470 (S8057AK252)

NIIN: 01-025-6470
In stock
NSN: 5331-01-025-6470
FSC Code: 5331
MPN: S8057AK252

5331-00-952-9609 (S8057AK223)

NIIN: 00-952-9609
In stock
NSN: 5331-00-952-9609
FSC Code: 5331
MPN: S8057AK223

5331-00-929-6460 (S8057AK256)

NIIN: 00-929-6460
In stock
NSN: 5331-00-929-6460
FSC Code: 5331
MPN: S8057AK256

5331-01-317-1685 (S8057AK19)

NIIN: 01-317-1685
In stock
NSN: 5331-01-317-1685
FSC Code: 5331
MPN: S8057AK19

5331-01-317-1684 (S8057AK11)

NIIN: 01-317-1684
In stock
NSN: 5331-01-317-1684
FSC Code: 5331
MPN: S8057AK11

5331-00-549-8285 (S8057AK121)

NIIN: 00-549-8285
In stock
NSN: 5331-00-549-8285
FSC Code: 5331
MPN: S8057AK121

5331-00-925-7836 (S8057AK164)

NIIN: 00-925-7836
In stock
NSN: 5331-00-925-7836
FSC Code: 5331
MPN: S8057AK164

5331-01-169-2019 (S8057AK161)

NIIN: 01-169-2019
In stock
NSN: 5331-01-169-2019
FSC Code: 5331
MPN: S8057AK161

5331-00-925-7829 (S8057AK124)

NIIN: 00-925-7829
In stock
NSN: 5331-00-925-7829
FSC Code: 5331
MPN: S8057AK124

5331-01-221-9904 (S8057AK100)

NIIN: 01-221-9904
In stock
NSN: 5331-01-221-9904
FSC Code: 5331
MPN: S8057AK100

5331-00-580-3533 (S8057AH147)

NIIN: 00-580-3533
In stock
NSN: 5331-00-580-3533
FSC Code: 5331
MPN: S8057AH147

5331-00-811-6262 (S8057AH6)

NIIN: 00-811-6262
In stock
NSN: 5331-00-811-6262
FSC Code: 5331
MPN: S8057AH6

5331-00-811-6263 (S8057AH5)

NIIN: 00-811-6263
In stock
NSN: 5331-00-811-6263
FSC Code: 5331
MPN: S8057AH5

5331-00-315-9144 (S8057AK10)

NIIN: 00-315-9144
In stock
NSN: 5331-00-315-9144
FSC Code: 5331
MPN: S8057AK10

5331-00-840-3431 (S8057AJ5)

NIIN: 00-840-3431
In stock
NSN: 5331-00-840-3431
FSC Code: 5331
MPN: S8057AJ5

5331-00-840-3432 (S8057AJ166)

NIIN: 00-840-3432
In stock
NSN: 5331-00-840-3432
FSC Code: 5331
MPN: S8057AJ166

5331-01-166-9133 (S8057AJ209)

NIIN: 01-166-9133
In stock
NSN: 5331-01-166-9133
FSC Code: 5331
MPN: S8057AJ209

5331-00-067-6951 (S8057AG13)

NIIN: 00-067-6951
In stock
NSN: 5331-00-067-6951
FSC Code: 5331
MPN: S8057AG13

5331-00-811-6261 (S8057AH166)

NIIN: 00-811-6261
In stock
NSN: 5331-00-811-6261
FSC Code: 5331
MPN: S8057AH166

5331-00-067-6955 (S8057AG283)

NIIN: 00-067-6955
In stock
NSN: 5331-00-067-6955
FSC Code: 5331
MPN: S8057AG283

5331-00-684-5101 (S8057AA20)

NIIN: 00-684-5101
In stock
NSN: 5331-00-684-5101
FSC Code: 5331
MPN: S8057AA20

5331-00-067-6954 (S8057AG261)

NIIN: 00-067-6954
In stock
NSN: 5331-00-067-6954
FSC Code: 5331
MPN: S8057AG261

5331-00-174-8670 (S8057AG10)

NIIN: 00-174-8670
In stock
NSN: 5331-00-174-8670
FSC Code: 5331
MPN: S8057AG10

5331-00-291-5597 (S8057AA7)

NIIN: 00-291-5597
In stock
NSN: 5331-00-291-5597
FSC Code: 5331
MPN: S8057AA7

5331-00-067-6953 (S8057AG11)

NIIN: 00-067-6953
In stock
NSN: 5331-00-067-6953
FSC Code: 5331
MPN: S8057AG11

5331-00-067-6956 (S8057AE11)

NIIN: 00-067-6956
In stock
NSN: 5331-00-067-6956
FSC Code: 5331
MPN: S8057AE11

5331-00-911-3804 (S8057AD118)

NIIN: 00-911-3804
In stock
NSN: 5331-00-911-3804
FSC Code: 5331
MPN: S8057AD118

5331-00-263-7940 (S8057A66)

NIIN: 00-263-7940
In stock
NSN: 5331-00-263-7940
FSC Code: 5331
MPN: S8057A66

5331-00-599-2077 (S8057A9)

NIIN: 00-599-2077
In stock
NSN: 5331-00-599-2077
FSC Code: 5331
MPN: S8057A9

5331-00-576-9574 (S8057A164)

NIIN: 00-576-9574
In stock
NSN: 5331-00-576-9574
FSC Code: 5331
MPN: S8057A164

5331-00-899-0873 (S8057AA183)

NIIN: 00-899-0873
In stock
NSN: 5331-00-899-0873
FSC Code: 5331
MPN: S8057AA183

5331-00-899-0874 (S8057AA161)

NIIN: 00-899-0874
In stock
NSN: 5331-00-899-0874
FSC Code: 5331
MPN: S8057AA161

5331-00-855-3882 (S8057A264)

NIIN: 00-855-3882
In stock
NSN: 5331-00-855-3882
FSC Code: 5331
MPN: S8057A264

5331-00-576-5034 (S8057A-5)

NIIN: 00-576-5034
In stock
NSN: 5331-00-576-5034
FSC Code: 5331
MPN: S8057A5

5331-00-297-6512 (S8057A34)

NIIN: 00-297-6512
In stock
NSN: 5331-00-297-6512
FSC Code: 5331
MPN: S8057A34

5331-00-297-6510 (S8057A6)

NIIN: 00-297-6510
In stock
NSN: 5331-00-297-6510
FSC Code: 5331
MPN: S8057A6

5331-00-297-6513 (S8057A3)

NIIN: 00-297-6513
In stock
NSN: 5331-00-297-6513
FSC Code: 5331
MPN: S8057A3

5331-00-171-8259 (S8057A17)

NIIN: 00-171-8259
In stock
NSN: 5331-00-171-8259
FSC Code: 5331
MPN: S8057A17

5331-00-952-9603 (S8057A156)

NIIN: 00-952-9603
In stock
NSN: 5331-00-952-9603
FSC Code: 5331
MPN: S8057A156

5331-00-579-6824 (S8057A130)

NIIN: 00-579-6824
In stock
NSN: 5331-00-579-6824
FSC Code: 5331
MPN: S8057A130

5331-00-171-5196 (S8057A121)

NIIN: 00-171-5196
In stock
NSN: 5331-00-171-5196
FSC Code: 5331
MPN: S8057A121

5331-00-171-5472 (S8057A137)

NIIN: 00-171-5472
In stock
NSN: 5331-00-171-5472
FSC Code: 5331
MPN: S8057A137

5331-00-514-4245 (S8057A120)

NIIN: 00-514-4245
In stock
NSN: 5331-00-514-4245
FSC Code: 5331
MPN: S8057A120

5331-00-531-2389 (S8057A147)

NIIN: 00-531-2389
In stock
NSN: 5331-00-531-2389
FSC Code: 5331
MPN: S8057A147

5331-00-599-6337 (S8057A115)

NIIN: 00-599-6337
In stock
NSN: 5331-00-599-6337
FSC Code: 5331
MPN: S8057A115

5331-00-599-0063 (S8057A1)

NIIN: 00-599-0063
In stock
NSN: 5331-00-599-0063
FSC Code: 5331
MPN: S8057A1

5331-00-202-4712 (S8057-2)

NIIN: 00-202-4712
In stock
NSN: 5331-00-202-4712
FSC Code: 5331
MPN: S80572

5331-00-641-7288 (S8057A122)

NIIN: 00-641-7288
In stock
NSN: 5331-00-641-7288
FSC Code: 5331
MPN: S8057A122