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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.

5331-00-168-6134 (8A65C14)

NIIN: 00-168-6134
In stock
NSN: 5331-00-168-6134
FSC Code: 5331
MPN: 8A65C14

5331-00-168-6131 (8A65C09)

NIIN: 00-168-6131
In stock
NSN: 5331-00-168-6131
FSC Code: 5331
MPN: 8A65C09

5331-00-168-6136 (8A65C38)

NIIN: 00-168-6136
In stock
NSN: 5331-00-168-6136
FSC Code: 5331
MPN: 8A65C38

5331-00-168-6135 (8A65C22)

NIIN: 00-168-6135
In stock
NSN: 5331-00-168-6135
FSC Code: 5331
MPN: 8A65C22

5331-00-828-4294 (8A65C20)

NIIN: 00-828-4294
In stock
NSN: 5331-00-828-4294
FSC Code: 5331
MPN: 8A65C20

5331-00-468-0694 (8A61M34)

NIIN: 00-468-0694
In stock
NSN: 5331-00-468-0694
FSC Code: 5331
MPN: 8A61M34

5331-00-924-7764 (8A61A05)

NIIN: 00-924-7764
In stock
NSN: 5331-00-924-7764
FSC Code: 5331
MPN: 8A61A05

5331-00-468-0681 (8A61C10)

NIIN: 00-468-0681
In stock
NSN: 5331-00-468-0681
FSC Code: 5331
MPN: 8A61C10

5331-00-077-9991 (8A61C41)

NIIN: 00-077-9991
In stock
NSN: 5331-00-077-9991
FSC Code: 5331
MPN: 8A61C41

5331-00-726-9169 (8A61M03)

NIIN: 00-726-9169
In stock
NSN: 5331-00-726-9169
FSC Code: 5331
MPN: 8A61M03

5331-00-468-0685 (8A61M33)

NIIN: 00-468-0685
In stock
NSN: 5331-00-468-0685
FSC Code: 5331
MPN: 8A61M33

5331-00-468-0682 (8A61C17)

NIIN: 00-468-0682
In stock
NSN: 5331-00-468-0682
FSC Code: 5331
MPN: 8A61C17

5331-00-924-7763 (8A61A07)

NIIN: 00-924-7763
In stock
NSN: 5331-00-924-7763
FSC Code: 5331
MPN: 8A61A07

5331-00-298-9957 (8A5833)

NIIN: 00-298-9957
In stock
NSN: 5331-00-298-9957
FSC Code: 5331
MPN: 8A5833

5331-00-171-3458 (8A45A11)

NIIN: 00-171-3458
In stock
NSN: 5331-00-171-3458
FSC Code: 5331
MPN: 8A45A11

5331-00-171-3461 (8A45A30)

NIIN: 00-171-3461
In stock
NSN: 5331-00-171-3461
FSC Code: 5331
MPN: 8A45A30

5331-00-599-9994 (8A45C39)

NIIN: 00-599-9994
In stock
NSN: 5331-00-599-9994
FSC Code: 5331
MPN: 8A45C39

5331-00-171-3454 (8A45A05)

NIIN: 00-171-3454
In stock
NSN: 5331-00-171-3454
FSC Code: 5331
MPN: 8A45A05

5331-00-171-3455 (8A45A06)

NIIN: 00-171-3455
In stock
NSN: 5331-00-171-3455
FSC Code: 5331
MPN: 8A45A06

5331-00-599-9996 (8A45S20)

NIIN: 00-599-9996
In stock
NSN: 5331-00-599-9996
FSC Code: 5331
MPN: 8A45S20

5331-00-585-9918 (8A45C17)

NIIN: 00-585-9918
In stock
NSN: 5331-00-585-9918
FSC Code: 5331
MPN: 8A45C17

5331-00-171-3457 (8A45A09)

NIIN: 00-171-3457
In stock
NSN: 5331-00-171-3457
FSC Code: 5331
MPN: 8A45A09

5331-00-585-9919 (8A45S40)

NIIN: 00-585-9919
In stock
NSN: 5331-00-585-9919
FSC Code: 5331
MPN: 8A45S40

5331-00-171-4767 (8A45A07)

NIIN: 00-171-4767
In stock
NSN: 5331-00-171-4767
FSC Code: 5331
MPN: 8A45A07

5331-00-171-3460 (8A45A28)

NIIN: 00-171-3460
In stock
NSN: 5331-00-171-3460
FSC Code: 5331
MPN: 8A45A28

5331-01-461-6194 (46-012-01404)

NIIN: 01-461-6194
In stock
NSN: 5331-01-461-6194
FSC Code: 5331
MPN: 4601201404

5331-00-171-4766 (8A45A04)

NIIN: 00-171-4766
In stock
NSN: 5331-00-171-4766
FSC Code: 5331
MPN: 8A45A04

5331-01-428-2732 (46010-94)

NIIN: 01-428-2732
In stock
NSN: 5331-01-428-2732
FSC Code: 5331
MPN: 4601094

5331-01-456-1687 (46-012-01396)

NIIN: 01-456-1687
In stock
NSN: 5331-01-456-1687
FSC Code: 5331
MPN: 4601201396

5331-00-202-1142 (8A16A35)

NIIN: 00-202-1142
In stock
NSN: 5331-00-202-1142
FSC Code: 5331
MPN: 8A16A35

5331-00-835-1214 (8A35C11)

NIIN: 00-835-1214
In stock
NSN: 5331-00-835-1214
FSC Code: 5331
MPN: 8A35C11

5331-01-338-0253 (8A-212-0209)

NIIN: 01-338-0253
In stock
NSN: 5331-01-338-0253
FSC Code: 5331
MPN: 8A2120209

5331-00-582-1882 (8A35C08)

NIIN: 00-582-1882
In stock
NSN: 5331-00-582-1882
FSC Code: 5331
MPN: 8A35C08

5331-01-338-0252 (8A-212-106)

NIIN: 01-338-0252
In stock
NSN: 5331-01-338-0252
FSC Code: 5331
MPN: 8A212106

5331-01-416-4968 (45Z91D75)

NIIN: 01-416-4968
In stock
NSN: 5331-01-416-4968
FSC Code: 5331
MPN: 45Z91D75

5331-01-371-9357 (45Z91D217)

NIIN: 01-371-9357
In stock
NSN: 5331-01-371-9357
FSC Code: 5331
MPN: 45Z91D217

5331-01-416-4965 (45Z91D5)

NIIN: 01-416-4965
In stock
NSN: 5331-01-416-4965
FSC Code: 5331
MPN: 45Z91D5

5331-01-388-8946 (45Z91D24)

NIIN: 01-388-8946
In stock
NSN: 5331-01-388-8946
FSC Code: 5331
MPN: 45Z91D24

5331-01-416-6493 (45Z91D74)

NIIN: 01-416-6493
In stock
NSN: 5331-01-416-6493
FSC Code: 5331
MPN: 45Z91D74

5331-01-358-7247 (45Z91D104)

NIIN: 01-358-7247
In stock
NSN: 5331-01-358-7247
FSC Code: 5331
MPN: 45Z91D104

5331-01-416-4970 (45Z91D29)

NIIN: 01-416-4970
In stock
NSN: 5331-01-416-4970
FSC Code: 5331
MPN: 45Z91D29

5331-01-368-5922 (45Z479D48)

NIIN: 01-368-5922
In stock
NSN: 5331-01-368-5922
FSC Code: 5331
MPN: 45Z479D48

5331-01-377-5348 (45Z91D152)

NIIN: 01-377-5348
In stock
NSN: 5331-01-377-5348
FSC Code: 5331
MPN: 45Z91D152

5331-01-416-4967 (45Z91D252)

NIIN: 01-416-4967
In stock
NSN: 5331-01-416-4967
FSC Code: 5331
MPN: 45Z91D252

5331-01-388-9015 (45Z91D112)

NIIN: 01-388-9015
In stock
NSN: 5331-01-388-9015
FSC Code: 5331
MPN: 45Z91D112

5331-01-368-7481 (45Z479D8)

NIIN: 01-368-7481
In stock
NSN: 5331-01-368-7481
FSC Code: 5331
MPN: 45Z479D8

5331-12-178-6288 (5331PL0890705)

NIIN: 12-178-6288
In stock
NSN: 5331-12-178-6288
FSC Code: 5331
MPN: 5331PL0890705

5331-01-416-4963 (45Z479D81)

NIIN: 01-416-4963
In stock
NSN: 5331-01-416-4963
FSC Code: 5331
MPN: 45Z479D81