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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.

5331-01-178-1764 (41788-6)

NIIN: 01-178-1764
In stock
NSN: 5331-01-178-1764
FSC Code: 5331
MPN: 417886

5331-01-178-1763 (41767-6)

NIIN: 01-178-1763
In stock
NSN: 5331-01-178-1763
FSC Code: 5331
MPN: 417676

5331-00-406-5136 (417556-1)

NIIN: 00-406-5136
In stock
NSN: 5331-00-406-5136
FSC Code: 5331
MPN: 4175561

5331-01-179-2252 (41764-6)

NIIN: 01-179-2252
In stock
NSN: 5331-01-179-2252
FSC Code: 5331
MPN: 417646

5331-01-471-6153 (14360N18-456D)

NIIN: 01-471-6153
In stock
NSN: 5331-01-471-6153
FSC Code: 5331
MPN: 14360N18456D

5331-01-471-6165 (14360N18-456F)

NIIN: 01-471-6165
In stock
NSN: 5331-01-471-6165
FSC Code: 5331
MPN: 14360N18456F

5331-01-471-6151 (14360N18-456C)

NIIN: 01-471-6151
In stock
NSN: 5331-01-471-6151
FSC Code: 5331
MPN: 14360N18456C

5331-01-471-6146 (14360N18-456B)

NIIN: 01-471-6146
In stock
NSN: 5331-01-471-6146
FSC Code: 5331
MPN: 14360N18456B

5331-01-471-6143 (14360N18-456A)

NIIN: 01-471-6143
In stock
NSN: 5331-01-471-6143
FSC Code: 5331
MPN: 14360N18456A

5331-01-521-8592 (2-158V0884-75)

NIIN: 01-521-8592
In stock
NSN: 5331-01-521-8592
FSC Code: 5331
MPN: 2158V088475

5331-00-814-0636 (417-192-1)

NIIN: 00-814-0636
In stock
NSN: 5331-00-814-0636
FSC Code: 5331
MPN: 4171921

5331-01-537-0222 (1431-1-1/2IN)

NIIN: 01-537-0222
In stock
NSN: 5331-01-537-0222
FSC Code: 5331
MPN: 1431112IN

5331-01-395-7905 (142F)

NIIN: 01-395-7905
In stock
NSN: 5331-01-395-7905
FSC Code: 5331
MPN: 142F

5331-01-528-5916 (142-6217)

NIIN: 01-528-5916
In stock
NSN: 5331-01-528-5916
FSC Code: 5331
MPN: 1426217

5331-01-566-4776 (142-6218)

NIIN: 01-566-4776
In stock
NSN: 5331-01-566-4776
FSC Code: 5331
MPN: 1426218

5331-00-522-2328 (416B618P1)

NIIN: 00-522-2328
In stock
NSN: 5331-00-522-2328
FSC Code: 5331
MPN: 416B618P1

5331-00-893-3297 (416B152P2)

NIIN: 00-893-3297
In stock
NSN: 5331-00-893-3297
FSC Code: 5331
MPN: 416B152P2

5331-00-834-8453 (416B152P3)

NIIN: 00-834-8453
In stock
NSN: 5331-00-834-8453
FSC Code: 5331
MPN: 416B152P3

5331-00-456-0005 (416-68PC16)

NIIN: 00-456-0005
In stock
NSN: 5331-00-456-0005
FSC Code: 5331
MPN: 41668PC16

5331-00-456-0006 (416-68PC17)

NIIN: 00-456-0006
In stock
NSN: 5331-00-456-0006
FSC Code: 5331
MPN: 41668PC17

5331-00-456-0004 (416-68PC14)

NIIN: 00-456-0004
In stock
NSN: 5331-00-456-0004
FSC Code: 5331
MPN: 41668PC14

5331-00-806-3197 (416141-14)

NIIN: 00-806-3197
In stock
NSN: 5331-00-806-3197
FSC Code: 5331
MPN: 41614114

5331-00-291-3300 (4160500-404)

NIIN: 00-291-3300
In stock
NSN: 5331-00-291-3300
FSC Code: 5331
MPN: 4160500404

5331-01-310-5195 (4154-6000)

NIIN: 01-310-5195
In stock
NSN: 5331-01-310-5195
FSC Code: 5331
MPN: 41546000

5331-01-271-7611 (4154-366Y)

NIIN: 01-271-7611
In stock
NSN: 5331-01-271-7611
FSC Code: 5331
MPN: 4154366Y

5331-01-147-9797 (4153-4213)

NIIN: 01-147-9797
In stock
NSN: 5331-01-147-9797
FSC Code: 5331
MPN: 41534213

5331-01-145-4019 (4153-4018)

NIIN: 01-145-4019
In stock
NSN: 5331-01-145-4019
FSC Code: 5331
MPN: 41534018

5331-01-146-9918 (4153-4015)

NIIN: 01-146-9918
In stock
NSN: 5331-01-146-9918
FSC Code: 5331
MPN: 41534015

5331-00-083-7381 (4152-8210)

NIIN: 00-083-7381
In stock
NSN: 5331-00-083-7381
FSC Code: 5331
MPN: 41528210

5331-00-234-6300 (4152-3345)

NIIN: 00-234-6300
In stock
NSN: 5331-00-234-6300
FSC Code: 5331
MPN: 41523345

5331-00-234-6279 (4152-3114)

NIIN: 00-234-6279
In stock
NSN: 5331-00-234-6279
FSC Code: 5331
MPN: 41523114

5331-01-291-7883 (4151-366Y)

NIIN: 01-291-7883
In stock
NSN: 5331-01-291-7883
FSC Code: 5331
MPN: 4151366Y

5331-01-018-5381 (4151-1374)

NIIN: 01-018-5381
In stock
NSN: 5331-01-018-5381
FSC Code: 5331
MPN: 41511374

5331-00-763-2716 (4151-1430)

NIIN: 00-763-2716
In stock
NSN: 5331-00-763-2716
FSC Code: 5331
MPN: 41511430

5331-01-249-6733 (4150-5177)

NIIN: 01-249-6733
In stock
NSN: 5331-01-249-6733
FSC Code: 5331
MPN: 41505177

5331-01-138-9594 (4-150-62CBJ1)

NIIN: 01-138-9594
In stock
NSN: 5331-01-138-9594
FSC Code: 5331
MPN: 415062CBJ1

5331-01-331-9295 (4150-5178)

NIIN: 01-331-9295
In stock
NSN: 5331-01-331-9295
FSC Code: 5331
MPN: 41505178

5331-01-331-9296 (4150-5226)

NIIN: 01-331-9296
In stock
NSN: 5331-01-331-9296
FSC Code: 5331
MPN: 41505226

5331-01-207-7614 (4150-5098)

NIIN: 01-207-7614
In stock
NSN: 5331-01-207-7614
FSC Code: 5331
MPN: 41505098

5331-00-008-5938 (4150-5024)

NIIN: 00-008-5938
In stock
NSN: 5331-00-008-5938
FSC Code: 5331
MPN: 41505024

5331-01-337-6864 (4150-5003)

NIIN: 01-337-6864
In stock
NSN: 5331-01-337-6864
FSC Code: 5331
MPN: 41505003

5331-01-326-9333 (415-05)

NIIN: 01-326-9333
In stock
NSN: 5331-01-326-9333
FSC Code: 5331
MPN: 41505

5331-00-140-2172 (4150-4036)

NIIN: 00-140-2172
In stock
NSN: 5331-00-140-2172
FSC Code: 5331
MPN: 41504036

5331-01-553-2152 (14-164)

NIIN: 01-553-2152
In stock
NSN: 5331-01-553-2152
FSC Code: 5331
MPN: 14164

5331-00-298-6983 (414B169-4)

NIIN: 00-298-6983
In stock
NSN: 5331-00-298-6983
FSC Code: 5331
MPN: 414B1694

5331-00-141-4993 (414B169-2)

NIIN: 00-141-4993
In stock
NSN: 5331-00-141-4993
FSC Code: 5331
MPN: 414B1692

5331-00-298-6972 (414B169-1)

NIIN: 00-298-6972
In stock
NSN: 5331-00-298-6972
FSC Code: 5331
MPN: 414B1691

5331-01-060-4694 (41-4465)

NIIN: 01-060-4694
In stock
NSN: 5331-01-060-4694
FSC Code: 5331
MPN: 414465