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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.

5331-00-003-0882 (S8057R315)

NIIN: 00-003-0882
In stock
NSN: 5331-00-003-0882
FSC Code: 5331
MPN: S8057R315

5331-00-412-9717 (S8057M180)

NIIN: 00-412-9717
In stock
NSN: 5331-00-412-9717
FSC Code: 5331
MPN: S8057M180

5331-00-223-9981 (S8057M112)

NIIN: 00-223-9981
In stock
NSN: 5331-00-223-9981
FSC Code: 5331
MPN: S8057M112

5331-00-061-8672 (S8057R123)

NIIN: 00-061-8672
In stock
NSN: 5331-00-061-8672
FSC Code: 5331
MPN: S8057R123

5331-00-584-9739 (S8057R203)

NIIN: 00-584-9739
In stock
NSN: 5331-00-584-9739
FSC Code: 5331
MPN: S8057R203

5331-00-171-5625 (S8057K9)

NIIN: 00-171-5625
In stock
NSN: 5331-00-171-5625
FSC Code: 5331
MPN: S8057K9

5331-00-819-2711 (S8057R104)

NIIN: 00-819-2711
In stock
NSN: 5331-00-819-2711
FSC Code: 5331
MPN: S8057R104

5331-00-958-5068 (S8057R169)

NIIN: 00-958-5068
In stock
NSN: 5331-00-958-5068
FSC Code: 5331
MPN: S8057R169

5331-00-465-6681 (S8057K290)

NIIN: 00-465-6681
In stock
NSN: 5331-00-465-6681
FSC Code: 5331
MPN: S8057K290

5331-00-171-5648 (S8057K165)

NIIN: 00-171-5648
In stock
NSN: 5331-00-171-5648
FSC Code: 5331
MPN: S8057K165

5331-00-171-5650 (S8057K153)

NIIN: 00-171-5650
In stock
NSN: 5331-00-171-5650
FSC Code: 5331
MPN: S8057K153

5331-00-240-4062 (S8057BH238)

NIIN: 00-240-4062
In stock
NSN: 5331-00-240-4062
FSC Code: 5331
MPN: S8057BH238

5331-00-171-6530 (S8057K121)

NIIN: 00-171-6530
In stock
NSN: 5331-00-171-6530
FSC Code: 5331
MPN: S8057K121

5331-00-937-5210 (S8057K138)

NIIN: 00-937-5210
In stock
NSN: 5331-00-937-5210
FSC Code: 5331
MPN: S8057K138

5331-00-285-8563 (S8057K133)

NIIN: 00-285-8563
In stock
NSN: 5331-00-285-8563
FSC Code: 5331
MPN: S8057K133

5331-00-285-8560 (S8057K136)

NIIN: 00-285-8560
In stock
NSN: 5331-00-285-8560
FSC Code: 5331
MPN: S8057K136

5331-00-935-1936 (S8057K105)

NIIN: 00-935-1936
In stock
NSN: 5331-00-935-1936
FSC Code: 5331
MPN: S8057K105

5331-00-171-5452 (S8057K123)

NIIN: 00-171-5452
In stock
NSN: 5331-00-171-5452
FSC Code: 5331
MPN: S8057K123

5331-00-360-2497 (S8057E5)

NIIN: 00-360-2497
In stock
NSN: 5331-00-360-2497
FSC Code: 5331
MPN: S8057E5

5331-00-171-6230 (S8057E20)

NIIN: 00-171-6230
In stock
NSN: 5331-00-171-6230
FSC Code: 5331
MPN: S8057E20

5331-00-171-7608 (S8057E25)

NIIN: 00-171-7608
In stock
NSN: 5331-00-171-7608
FSC Code: 5331
MPN: S8057E25

5331-00-171-6539 (S8057K111)

NIIN: 00-171-6539
In stock
NSN: 5331-00-171-6539
FSC Code: 5331
MPN: S8057K111

5331-00-171-6231 (S8057E12)

NIIN: 00-171-6231
In stock
NSN: 5331-00-171-6231
FSC Code: 5331
MPN: S8057E12

5331-00-576-9436 (S8057K120)

NIIN: 00-576-9436
In stock
NSN: 5331-00-576-9436
FSC Code: 5331
MPN: S8057K120

5331-00-576-5037 (S8057K106)

NIIN: 00-576-5037
In stock
NSN: 5331-00-576-5037
FSC Code: 5331
MPN: S8057K106

5331-00-171-7552 (S8057H9)

NIIN: 00-171-7552
In stock
NSN: 5331-00-171-7552
FSC Code: 5331
MPN: S8057H9

5331-00-935-9165 (S8057CA124)

NIIN: 00-935-9165
In stock
NSN: 5331-00-935-9165
FSC Code: 5331
MPN: S8057CA124

5331-00-171-5282 (S8057E10)

NIIN: 00-171-5282
In stock
NSN: 5331-00-171-5282
FSC Code: 5331
MPN: S8057E10

5331-00-138-4413 (S8057BT124)

NIIN: 00-138-4413
In stock
NSN: 5331-00-138-4413
FSC Code: 5331
MPN: S8057BT124

5331-01-042-2821 (S8057BS286)

NIIN: 01-042-2821
In stock
NSN: 5331-01-042-2821
FSC Code: 5331
MPN: S8057BS286

5331-00-935-9164 (S8057CA2)

NIIN: 00-935-9164
In stock
NSN: 5331-00-935-9164
FSC Code: 5331
MPN: S8057CA2

5331-00-582-2603 (S8057C135)

NIIN: 00-582-2603
In stock
NSN: 5331-00-582-2603
FSC Code: 5331
MPN: S8057C135

5331-00-903-4650 (S8057BL153)

NIIN: 00-903-4650
In stock
NSN: 5331-00-903-4650
FSC Code: 5331
MPN: S8057BL153

5331-00-952-0815 (S8057BH27)

NIIN: 00-952-0815
In stock
NSN: 5331-00-952-0815
FSC Code: 5331
MPN: S8057BH27

5331-00-171-5854 (S8057BG233)

NIIN: 00-171-5854
In stock
NSN: 5331-00-171-5854
FSC Code: 5331
MPN: S8057BG233

5331-00-988-5293 (S8057BH132)

NIIN: 00-988-5293
In stock
NSN: 5331-00-988-5293
FSC Code: 5331
MPN: S8057BH132

5331-01-224-8229 (S8057BF244)

NIIN: 01-224-8229
In stock
NSN: 5331-01-224-8229
FSC Code: 5331
MPN: S8057BF244

5331-00-958-0300 (S8057BH181)

NIIN: 00-958-0300
In stock
NSN: 5331-00-958-0300
FSC Code: 5331
MPN: S8057BH181

5331-00-171-5853 (S8057BG185)

NIIN: 00-171-5853
In stock
NSN: 5331-00-171-5853
FSC Code: 5331
MPN: S8057BG185

5331-00-984-1662 (S8057BE5)

NIIN: 00-984-1662
In stock
NSN: 5331-00-984-1662
FSC Code: 5331
MPN: S8057BE5

5331-00-184-9848 (S8057BG210)

NIIN: 00-184-9848
In stock
NSN: 5331-00-184-9848
FSC Code: 5331
MPN: S8057BG210

5331-00-173-8368 (S8057BG7)

NIIN: 00-173-8368
In stock
NSN: 5331-00-173-8368
FSC Code: 5331
MPN: S8057BG7

5331-01-009-8138 (S8057BF257)

NIIN: 01-009-8138
In stock
NSN: 5331-01-009-8138
FSC Code: 5331
MPN: S8057BF257

5331-00-226-7212 (S8057BC169)

NIIN: 00-226-7212
In stock
NSN: 5331-00-226-7212
FSC Code: 5331
MPN: S8057BC169

5331-00-935-9162 (S8057BF150)

NIIN: 00-935-9162
In stock
NSN: 5331-00-935-9162
FSC Code: 5331
MPN: S8057BF150

5331-00-051-4215 (S8057BB150)

NIIN: 00-051-4215
In stock
NSN: 5331-00-051-4215
FSC Code: 5331
MPN: S8057BB150

5331-00-599-3267 (S8057B14)

NIIN: 00-599-3267
In stock
NSN: 5331-00-599-3267
FSC Code: 5331
MPN: S8057B14

5331-00-599-6547 (S8057B11)

NIIN: 00-599-6547
In stock
NSN: 5331-00-599-6547
FSC Code: 5331
MPN: S8057B11