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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.

5331-01-282-1543 (39802374)

NIIN: 01-282-1543
In stock
NSN: 5331-01-282-1543
FSC Code: 5331
MPN: 39802374

5331-01-296-2661 (39802672)

NIIN: 01-296-2661
In stock
NSN: 5331-01-296-2661
FSC Code: 5331
MPN: 39802672

5331-01-296-6448 (39812572)

NIIN: 01-296-6448
In stock
NSN: 5331-01-296-6448
FSC Code: 5331
MPN: 39812572

5331-01-296-2660 (39812272)

NIIN: 01-296-2660
In stock
NSN: 5331-01-296-2660
FSC Code: 5331
MPN: 39812272

5331-01-297-4030 (39812972)

NIIN: 01-297-4030
In stock
NSN: 5331-01-297-4030
FSC Code: 5331
MPN: 39812972

5331-01-292-0157 (39822374)

NIIN: 01-292-0157
In stock
NSN: 5331-01-292-0157
FSC Code: 5331
MPN: 39822374

5331-00-167-5168 (39825174)

NIIN: 00-167-5168
In stock
NSN: 5331-00-167-5168
FSC Code: 5331
MPN: 39825174

5331-01-276-7349 (39821072)

NIIN: 01-276-7349
In stock
NSN: 5331-01-276-7349
FSC Code: 5331
MPN: 39821072

5331-01-005-4047 (39843372)

NIIN: 01-005-4047
In stock
NSN: 5331-01-005-4047
FSC Code: 5331
MPN: 39843372

5331-01-280-8006 (39815272)

NIIN: 01-280-8006
In stock
NSN: 5331-01-280-8006
FSC Code: 5331
MPN: 39815272

5331-01-285-5903 (39813972)

NIIN: 01-285-5903
In stock
NSN: 5331-01-285-5903
FSC Code: 5331
MPN: 39813972

5331-01-101-8067 (40022400)

NIIN: 01-101-8067
In stock
NSN: 5331-01-101-8067
FSC Code: 5331
MPN: 40022400

5331-01-102-1796 (40022900)

NIIN: 01-102-1796
In stock
NSN: 5331-01-102-1796
FSC Code: 5331
MPN: 40022900

5331-01-245-3600 (40023200)

NIIN: 01-245-3600
In stock
NSN: 5331-01-245-3600
FSC Code: 5331
MPN: 40023200

5331-01-102-1895 (40022600)

NIIN: 01-102-1895
In stock
NSN: 5331-01-102-1895
FSC Code: 5331
MPN: 40022600

5331-01-101-9483 (40023100)

NIIN: 01-101-9483
In stock
NSN: 5331-01-101-9483
FSC Code: 5331
MPN: 40023100

5331-01-069-9314 (40023800)

NIIN: 01-069-9314
In stock
NSN: 5331-01-069-9314
FSC Code: 5331
MPN: 40023800

5331-01-102-9697 (40037100)

NIIN: 01-102-9697
In stock
NSN: 5331-01-102-9697
FSC Code: 5331
MPN: 40037100

5331-01-171-6301 (40083693)

NIIN: 01-171-6301
In stock
NSN: 5331-01-171-6301
FSC Code: 5331
MPN: 40083693

5331-01-196-6553 (40083681)

NIIN: 01-196-6553
In stock
NSN: 5331-01-196-6553
FSC Code: 5331
MPN: 40083681

5331-01-190-1898 (40177005)

NIIN: 01-190-1898
In stock
NSN: 5331-01-190-1898
FSC Code: 5331
MPN: 40177005

5331-00-153-2204 (40310459)

NIIN: 00-153-2204
In stock
NSN: 5331-00-153-2204
FSC Code: 5331
MPN: 40310459

5331-00-588-4200 (40392214)

NIIN: 00-588-4200
In stock
NSN: 5331-00-588-4200
FSC Code: 5331
MPN: 40392214

5331-01-190-1897 (40177004)

NIIN: 01-190-1897
In stock
NSN: 5331-01-190-1897
FSC Code: 5331
MPN: 40177004

5331-00-458-2025 (41100358)

NIIN: 00-458-2025
In stock
NSN: 5331-00-458-2025
FSC Code: 5331
MPN: 41100358

5331-00-954-1291 (41100354)

NIIN: 00-954-1291
In stock
NSN: 5331-00-954-1291
FSC Code: 5331
MPN: 41100354

5331-00-370-1601 (42130062)

NIIN: 00-370-1601
In stock
NSN: 5331-00-370-1601
FSC Code: 5331
MPN: 42130062

5331-00-250-1990 (42111088)

NIIN: 00-250-1990
In stock
NSN: 5331-00-250-1990
FSC Code: 5331
MPN: 42111088

5331-01-291-5634 (42130732)

NIIN: 01-291-5634
In stock
NSN: 5331-01-291-5634
FSC Code: 5331
MPN: 42130732

5331-00-368-6179 (42135194)

NIIN: 00-368-6179
In stock
NSN: 5331-00-368-6179
FSC Code: 5331
MPN: 42135194

5331-00-368-6128 (42136051)

NIIN: 00-368-6128
In stock
NSN: 5331-00-368-6128
FSC Code: 5331
MPN: 42136051

5331-00-484-4120 (42131391)

NIIN: 00-484-4120
In stock
NSN: 5331-00-484-4120
FSC Code: 5331
MPN: 42131391

5331-00-250-1996 (42135319)

NIIN: 00-250-1996
In stock
NSN: 5331-00-250-1996
FSC Code: 5331
MPN: 42135319

5331-00-250-1997 (42135160)

NIIN: 00-250-1997
In stock
NSN: 5331-00-250-1997
FSC Code: 5331
MPN: 42135160

5331-00-250-1995 (42136333)

NIIN: 00-250-1995
In stock
NSN: 5331-00-250-1995
FSC Code: 5331
MPN: 42136333

5331-00-250-1993 (42135095)

NIIN: 00-250-1993
In stock
NSN: 5331-00-250-1993
FSC Code: 5331
MPN: 42135095

5331-01-132-8349 (46100042)

NIIN: 01-132-8349
In stock
NSN: 5331-01-132-8349
FSC Code: 5331
MPN: 46100042

5331-01-144-0955 (47990282)

NIIN: 01-144-0955
In stock
NSN: 5331-01-144-0955
FSC Code: 5331
MPN: 47990282

5331-01-142-7064 (47991385)

NIIN: 01-142-7064
In stock
NSN: 5331-01-142-7064
FSC Code: 5331
MPN: 47991385

5331-01-142-4810 (47991383)

NIIN: 01-142-4810
In stock
NSN: 5331-01-142-4810
FSC Code: 5331
MPN: 47991383

5331-01-142-2759 (47991386)

NIIN: 01-142-2759
In stock
NSN: 5331-01-142-2759
FSC Code: 5331
MPN: 47991386

5331-01-142-7065 (47991384)

NIIN: 01-142-7065
In stock
NSN: 5331-01-142-7065
FSC Code: 5331
MPN: 47991384

5331-01-297-1097 (48490663)

NIIN: 01-297-1097
In stock
NSN: 5331-01-297-1097
FSC Code: 5331
MPN: 48490663

5331-01-296-7693 (48490662)

NIIN: 01-296-7693
In stock
NSN: 5331-01-296-7693
FSC Code: 5331
MPN: 48490662

5331-01-297-1098 (48490664)

NIIN: 01-297-1098
In stock
NSN: 5331-01-297-1098
FSC Code: 5331
MPN: 48490664

5331-01-334-4457 (48690607)

NIIN: 01-334-4457
In stock
NSN: 5331-01-334-4457
FSC Code: 5331
MPN: 48690607

5331-01-297-4037 (48681023)

NIIN: 01-297-4037
In stock
NSN: 5331-01-297-4037
FSC Code: 5331
MPN: 48681023

5331-01-303-5378 (48690906)

NIIN: 01-303-5378
In stock
NSN: 5331-01-303-5378
FSC Code: 5331
MPN: 48690906