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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.

5331-01-570-2946 (P51182)

NIIN: 01-570-2946
In stock
NSN: 5331-01-570-2946
FSC Code: 5331
MPN: P51182

5331-01-472-2889 (P503204)

NIIN: 01-472-2889
In stock
NSN: 5331-01-472-2889
FSC Code: 5331
MPN: P503204

5331-01-513-5781 (P502004)

NIIN: 01-513-5781
In stock
NSN: 5331-01-513-5781
FSC Code: 5331
MPN: P502004

5331-01-419-2463 (P-5)

NIIN: 01-419-2463
In stock
NSN: 5331-01-419-2463
FSC Code: 5331
MPN: P5

5331-01-357-7214 (P49783-017)

NIIN: 01-357-7214
In stock
NSN: 5331-01-357-7214
FSC Code: 5331
MPN: P49783017

5331-01-357-7210 (P49783-130)

NIIN: 01-357-7210
In stock
NSN: 5331-01-357-7210
FSC Code: 5331
MPN: P49783130

5331-01-357-7216 (P49783-018)

NIIN: 01-357-7216
In stock
NSN: 5331-01-357-7216
FSC Code: 5331
MPN: P49783018

5331-01-357-7215 (P49783-111)

NIIN: 01-357-7215
In stock
NSN: 5331-01-357-7215
FSC Code: 5331
MPN: P49783111

5331-01-357-7209 (P49783-147)

NIIN: 01-357-7209
In stock
NSN: 5331-01-357-7209
FSC Code: 5331
MPN: P49783147

5331-01-357-7213 (P49783-135)

NIIN: 01-357-7213
In stock
NSN: 5331-01-357-7213
FSC Code: 5331
MPN: P49783135

5331-01-357-7211 (P49783-015)

NIIN: 01-357-7211
In stock
NSN: 5331-01-357-7211
FSC Code: 5331
MPN: P49783015

5331-01-567-9376 (P48347)

NIIN: 01-567-9376
In stock
NSN: 5331-01-567-9376
FSC Code: 5331
MPN: P48347

5331-01-571-8800 (P48403)

NIIN: 01-571-8800
In stock
NSN: 5331-01-571-8800
FSC Code: 5331
MPN: P48403

5331-01-351-7097 (P47889)

NIIN: 01-351-7097
In stock
NSN: 5331-01-351-7097
FSC Code: 5331
MPN: P47889

5331-01-438-2494 (P41)

NIIN: 01-438-2494
In stock
NSN: 5331-01-438-2494
FSC Code: 5331
MPN: P41

5331-01-529-6363 (P3921)

NIIN: 01-529-6363
In stock
NSN: 5331-01-529-6363
FSC Code: 5331
MPN: P3921

5331-01-529-6356 (P3922)

NIIN: 01-529-6356
In stock
NSN: 5331-01-529-6356
FSC Code: 5331
MPN: P3922

5331-01-447-1394 (P377)

NIIN: 01-447-1394
In stock
NSN: 5331-01-447-1394
FSC Code: 5331
MPN: P377

5331-01-452-7378 (P35619-2)

NIIN: 01-452-7378
In stock
NSN: 5331-01-452-7378
FSC Code: 5331
MPN: P356192

5331-01-414-5684 (P3-37861-G01)

NIIN: 01-414-5684
In stock
NSN: 5331-01-414-5684
FSC Code: 5331
MPN: P337861G01

5331-01-433-0968 (P3-14313)

NIIN: 01-433-0968
In stock
NSN: 5331-01-433-0968
FSC Code: 5331
MPN: P314313

5331-01-341-2133 (P30370)

NIIN: 01-341-2133
In stock
NSN: 5331-01-341-2133
FSC Code: 5331
MPN: P30370

5331-01-396-8116 (P2V)

NIIN: 01-396-8116
In stock
NSN: 5331-01-396-8116
FSC Code: 5331
MPN: P2V

5331-01-438-6579 (P27270)

NIIN: 01-438-6579
In stock
NSN: 5331-01-438-6579
FSC Code: 5331
MPN: P27270

5331-01-340-8207 (P230459)

NIIN: 01-340-8207
In stock
NSN: 5331-01-340-8207
FSC Code: 5331
MPN: P230459

5331-01-421-4954 (P22325214E)

NIIN: 01-421-4954
In stock
NSN: 5331-01-421-4954
FSC Code: 5331
MPN: P22325214E

5331-01-461-8512 (P-232-VT)

NIIN: 01-461-8512
In stock
NSN: 5331-01-461-8512
FSC Code: 5331
MPN: P232VT

5331-01-438-2491 (P22)

NIIN: 01-438-2491
In stock
NSN: 5331-01-438-2491
FSC Code: 5331
MPN: P22

5331-01-340-8210 (P2030429)

NIIN: 01-340-8210
In stock
NSN: 5331-01-340-8210
FSC Code: 5331
MPN: P2030429

5331-01-341-2129 (P2030430)

NIIN: 01-341-2129
In stock
NSN: 5331-01-341-2129
FSC Code: 5331
MPN: P2030430

5331-21-912-4342 (P-1783ITEM6)

NIIN: 21-912-4342
In stock
NSN: 5331-21-912-4342
FSC Code: 5331
MPN: P1783ITEM6

5331-01-547-9279 (P163275)

NIIN: 01-547-9279
In stock
NSN: 5331-01-547-9279
FSC Code: 5331
MPN: P163275

5331-01-499-6226 (P162742)

NIIN: 01-499-6226
In stock
NSN: 5331-01-499-6226
FSC Code: 5331
MPN: P162742

5331-01-568-0146 (P160710)

NIIN: 01-568-0146
In stock
NSN: 5331-01-568-0146
FSC Code: 5331
MPN: P160710

5331-01-360-2839 (P16-2005)

NIIN: 01-360-2839
In stock
NSN: 5331-01-360-2839
FSC Code: 5331
MPN: P162005

5331-01-567-1221 (P160016)

NIIN: 01-567-1221
In stock
NSN: 5331-01-567-1221
FSC Code: 5331
MPN: P160016

5331-01-567-1270 (P160125)

NIIN: 01-567-1270
In stock
NSN: 5331-01-567-1270
FSC Code: 5331
MPN: P160125

5331-01-461-8510 (P-156-BN)

NIIN: 01-461-8510
In stock
NSN: 5331-01-461-8510
FSC Code: 5331
MPN: P156BN

5331-01-438-2493 (P16)

NIIN: 01-438-2493
In stock
NSN: 5331-01-438-2493
FSC Code: 5331
MPN: P16

5331-01-340-8208 (P151238)

NIIN: 01-340-8208
In stock
NSN: 5331-01-340-8208
FSC Code: 5331
MPN: P151238

5331-01-535-7289 (P14132A)

NIIN: 01-535-7289
In stock
NSN: 5331-01-535-7289
FSC Code: 5331
MPN: P14132A

5331-01-422-3091 (P-13118-V)

NIIN: 01-422-3091
In stock
NSN: 5331-01-422-3091
FSC Code: 5331
MPN: P13118V

5331-01-340-8212 (P130487)

NIIN: 01-340-8212
In stock
NSN: 5331-01-340-8212
FSC Code: 5331
MPN: P130487

5331-01-495-6343 (P-12-1S)

NIIN: 01-495-6343
In stock
NSN: 5331-01-495-6343
FSC Code: 5331
MPN: P121S

5331-01-432-8112 (P1222X10-20T)

NIIN: 01-432-8112
In stock
NSN: 5331-01-432-8112
FSC Code: 5331
MPN: P1222X1020T

5331-01-438-2487 (P12)

NIIN: 01-438-2487
In stock
NSN: 5331-01-438-2487
FSC Code: 5331
MPN: P12

5331-01-406-5506 (P-1114)

NIIN: 01-406-5506
In stock
NSN: 5331-01-406-5506
FSC Code: 5331
MPN: P1114

5331-01-353-9380 (P-1100-21)

NIIN: 01-353-9380
In stock
NSN: 5331-01-353-9380
FSC Code: 5331
MPN: P110021