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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.

5331-01-370-8373 (PCM-C-524-18)

NIIN: 01-370-8373
In stock
NSN: 5331-01-370-8373
FSC Code: 5331
MPN: PCMC52418

5331-01-529-3105 (PNL-0279A-01)

NIIN: 01-529-3105
In stock
NSN: 5331-01-529-3105
FSC Code: 5331
MPN: PNL0279A01

5331-01-541-3699 (9464K78)

NIIN: 01-541-3699
In stock
NSN: 5331-01-541-3699
FSC Code: 5331
MPN: 9464K78

5331-01-387-6815 (946608-7)

NIIN: 01-387-6815
In stock
NSN: 5331-01-387-6815
FSC Code: 5331
MPN: 9466087

5331-01-552-7308 (D-WK-871-36)

NIIN: 01-552-7308
In stock
NSN: 5331-01-552-7308
FSC Code: 5331
MPN: DWK87136

5331-01-529-3104 (PNL-0282A-01)

NIIN: 01-529-3104
In stock
NSN: 5331-01-529-3104
FSC Code: 5331
MPN: PNL0282A01

5331-01-529-3106 (PNL-0278A-01)

NIIN: 01-529-3106
In stock
NSN: 5331-01-529-3106
FSC Code: 5331
MPN: PNL0278A01

5331-01-529-3112 (PNL-0284A-01)

NIIN: 01-529-3112
In stock
NSN: 5331-01-529-3112
FSC Code: 5331
MPN: PNL0284A01

5331-01-530-0028 (9464K141)

NIIN: 01-530-0028
In stock
NSN: 5331-01-530-0028
FSC Code: 5331
MPN: 9464K141

5331-01-530-0094 (9464K146)

NIIN: 01-530-0094
In stock
NSN: 5331-01-530-0094
FSC Code: 5331
MPN: 9464K146

5331-01-529-3108 (PNL-0283A-01)

NIIN: 01-529-3108
In stock
NSN: 5331-01-529-3108
FSC Code: 5331
MPN: PNL0283A01

5331-01-563-0207 (9464K13)

NIIN: 01-563-0207
In stock
NSN: 5331-01-563-0207
FSC Code: 5331
MPN: 9464K13

5331-01-530-0091 (9464K131)

NIIN: 01-530-0091
In stock
NSN: 5331-01-530-0091
FSC Code: 5331
MPN: 9464K131

5331-01-390-3129 (946.91.27.827)

NIIN: 01-390-3129
In stock
NSN: 5331-01-390-3129
FSC Code: 5331
MPN: 9469127827

5331-01-569-0855 (9452K92)

NIIN: 01-569-0855
In stock
NSN: 5331-01-569-0855
FSC Code: 5331
MPN: 9452K92

5331-01-569-0905 (9452K85)

NIIN: 01-569-0905
In stock
NSN: 5331-01-569-0905
FSC Code: 5331
MPN: 9452K85

5331-01-421-1834 (9452K6-016)

NIIN: 01-421-1834
In stock
NSN: 5331-01-421-1834
FSC Code: 5331
MPN: 9452K6016

5331-01-560-0882 (9452K501)

NIIN: 01-560-0882
In stock
NSN: 5331-01-560-0882
FSC Code: 5331
MPN: 9452K501

5331-01-559-8290 (9452K89)

NIIN: 01-559-8290
In stock
NSN: 5331-01-559-8290
FSC Code: 5331
MPN: 9452K89

5331-01-421-1830 (9452K78-024)

NIIN: 01-421-1830
In stock
NSN: 5331-01-421-1830
FSC Code: 5331
MPN: 9452K78024

5331-01-532-8920 (9452K191)

NIIN: 01-532-8920
In stock
NSN: 5331-01-532-8920
FSC Code: 5331
MPN: 9452K191

5331-01-569-1125 (9452K192)

NIIN: 01-569-1125
In stock
NSN: 5331-01-569-1125
FSC Code: 5331
MPN: 9452K192

5331-01-421-1835 (9452K74-020)

NIIN: 01-421-1835
In stock
NSN: 5331-01-421-1835
FSC Code: 5331
MPN: 9452K74020

5331-01-483-2917 (AS568A-021)

NIIN: 01-483-2917
In stock
NSN: 5331-01-483-2917
FSC Code: 5331
MPN: AS568A021

5331-01-421-1826 (9452K16-008)

NIIN: 01-421-1826
In stock
NSN: 5331-01-421-1826
FSC Code: 5331
MPN: 9452K16008

5331-01-549-9558 (9452K144)

NIIN: 01-549-9558
In stock
NSN: 5331-01-549-9558
FSC Code: 5331
MPN: 9452K144

5331-01-526-2299 (9452K36)

NIIN: 01-526-2299
In stock
NSN: 5331-01-526-2299
FSC Code: 5331
MPN: 9452K36

5331-01-560-5843 (9452K24)

NIIN: 01-560-5843
In stock
NSN: 5331-01-560-5843
FSC Code: 5331
MPN: 9452K24

5331-01-568-7376 (9452K146)

NIIN: 01-568-7376
In stock
NSN: 5331-01-568-7376
FSC Code: 5331
MPN: 9452K146

5331-01-545-2934 (9452K338)

NIIN: 01-545-2934
In stock
NSN: 5331-01-545-2934
FSC Code: 5331
MPN: 9452K338

5331-01-544-2161 (9452K174)

NIIN: 01-544-2161
In stock
NSN: 5331-01-544-2161
FSC Code: 5331
MPN: 9452K174

5331-01-421-1828 (9452K21-012)

NIIN: 01-421-1828
In stock
NSN: 5331-01-421-1828
FSC Code: 5331
MPN: 9452K21012

5331-01-563-7011 (9452K382)

NIIN: 01-563-7011
In stock
NSN: 5331-01-563-7011
FSC Code: 5331
MPN: 9452K382

5331-01-564-1265 (9452K14)

NIIN: 01-564-1265
In stock
NSN: 5331-01-564-1265
FSC Code: 5331
MPN: 9452K14

5331-01-568-6970 (9452K181)

NIIN: 01-568-6970
In stock
NSN: 5331-01-568-6970
FSC Code: 5331
MPN: 9452K181

5331-01-425-5512 (9452K18-010)

NIIN: 01-425-5512
In stock
NSN: 5331-01-425-5512
FSC Code: 5331
MPN: 9452K18010

5331-01-421-1827 (9452K18-010)

NIIN: 01-421-1827
In stock
NSN: 5331-01-421-1827
FSC Code: 5331
MPN: 9452K18010

5331-01-572-7915 (9452K19)

NIIN: 01-572-7915
In stock
NSN: 5331-01-572-7915
FSC Code: 5331
MPN: 9452K19

5331-01-421-1831 (9452K12-004)

NIIN: 01-421-1831
In stock
NSN: 5331-01-421-1831
FSC Code: 5331
MPN: 9452K12004

5331-01-421-1833 (9452K14-006)

NIIN: 01-421-1833
In stock
NSN: 5331-01-421-1833
FSC Code: 5331
MPN: 9452K14006

5331-01-421-1829 (94525K58-014)

NIIN: 01-421-1829
In stock
NSN: 5331-01-421-1829
FSC Code: 5331
MPN: 94525K58014

5331-01-500-5802 (9452546-01)

NIIN: 01-500-5802
In stock
NSN: 5331-01-500-5802
FSC Code: 5331
MPN: 945254601

5331-01-387-6766 (945221-0)

NIIN: 01-387-6766
In stock
NSN: 5331-01-387-6766
FSC Code: 5331
MPN: 9452210

5331-01-517-3342 (JA94501-27)

NIIN: 01-517-3342
In stock
NSN: 5331-01-517-3342
FSC Code: 5331
MPN: JA9450127

5331-01-387-1220 (PL509E817AEPN56)

NIIN: 01-387-1220
In stock
NSN: 5331-01-387-1220
FSC Code: 5331
MPN: PL509E817AEPN56

5331-01-434-3812 (943924-1)

NIIN: 01-434-3812
In stock
NSN: 5331-01-434-3812
FSC Code: 5331
MPN: 9439241

5331-01-377-5193 (9-437-100164)

NIIN: 01-377-5193
In stock
NSN: 5331-01-377-5193
FSC Code: 5331
MPN: 9437100164

5331-01-377-5192 (9-437-100170)

NIIN: 01-377-5192
In stock
NSN: 5331-01-377-5192
FSC Code: 5331
MPN: 9437100170