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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.

5331-00-828-8235 (16701333)

NIIN: 00-828-8235
In stock
NSN: 5331-00-828-8235
FSC Code: 5331
MPN: 16701333

5331-00-558-1092 (16701279)

NIIN: 00-558-1092
In stock
NSN: 5331-00-558-1092
FSC Code: 5331
MPN: 16701279

5331-00-819-1512 (16701332)

NIIN: 00-819-1512
In stock
NSN: 5331-00-819-1512
FSC Code: 5331
MPN: 16701332

5331-01-160-4348 (16701603)

NIIN: 01-160-4348
In stock
NSN: 5331-01-160-4348
FSC Code: 5331
MPN: 16701603

5331-00-823-4371 (16702202)

NIIN: 00-823-4371
In stock
NSN: 5331-00-823-4371
FSC Code: 5331
MPN: 16702202

5331-00-905-0176 (16702201)

NIIN: 00-905-0176
In stock
NSN: 5331-00-905-0176
FSC Code: 5331
MPN: 16702201

5331-01-099-8846 (16702205)

NIIN: 01-099-8846
In stock
NSN: 5331-01-099-8846
FSC Code: 5331
MPN: 16702205

5331-01-277-7222 (16702206)

NIIN: 01-277-7222
In stock
NSN: 5331-01-277-7222
FSC Code: 5331
MPN: 16702206

5331-01-201-8681 (18945501)

NIIN: 01-201-8681
In stock
NSN: 5331-01-201-8681
FSC Code: 5331
MPN: 18945501

5331-01-202-7606 (18945502)

NIIN: 01-202-7606
In stock
NSN: 5331-01-202-7606
FSC Code: 5331
MPN: 18945502

5331-01-271-5782 (18704125)

NIIN: 01-271-5782
In stock
NSN: 5331-01-271-5782
FSC Code: 5331
MPN: 18704125

5331-01-334-9953 (19105030)

NIIN: 01-334-9953
In stock
NSN: 5331-01-334-9953
FSC Code: 5331
MPN: 19105030

5331-01-157-1883 (19133635)

NIIN: 01-157-1883
In stock
NSN: 5331-01-157-1883
FSC Code: 5331
MPN: 19133635

5331-01-286-7795 (20073221)

NIIN: 01-286-7795
In stock
NSN: 5331-01-286-7795
FSC Code: 5331
MPN: 20073221

5331-01-287-6642 (20073236)

NIIN: 01-287-6642
In stock
NSN: 5331-01-287-6642
FSC Code: 5331
MPN: 20073236

5331-01-288-6599 (20169507)

NIIN: 01-288-6599
In stock
NSN: 5331-01-288-6599
FSC Code: 5331
MPN: 20169507

5331-00-461-3158 (20535001)

NIIN: 00-461-3158
In stock
NSN: 5331-00-461-3158
FSC Code: 5331
MPN: 20535001

5331-01-233-7791 (21170001)

NIIN: 01-233-7791
In stock
NSN: 5331-01-233-7791
FSC Code: 5331
MPN: 21170001

5331-01-194-7215 (21511723)

NIIN: 01-194-7215
In stock
NSN: 5331-01-194-7215
FSC Code: 5331
MPN: 21511723

5331-00-992-5982 (21511741)

NIIN: 00-992-5982
In stock
NSN: 5331-00-992-5982
FSC Code: 5331
MPN: 21511741

5331-01-194-7216 (21511722)

NIIN: 01-194-7216
In stock
NSN: 5331-01-194-7216
FSC Code: 5331
MPN: 21511722

5331-01-178-1254 (21511711)

NIIN: 01-178-1254
In stock
NSN: 5331-01-178-1254
FSC Code: 5331
MPN: 21511711

5331-01-191-8032 (21511712)

NIIN: 01-191-8032
In stock
NSN: 5331-01-191-8032
FSC Code: 5331
MPN: 21511712

5331-01-191-2310 (21526725)

NIIN: 01-191-2310
In stock
NSN: 5331-01-191-2310
FSC Code: 5331
MPN: 21526725

5331-01-328-4160 (21526726)

NIIN: 01-328-4160
In stock
NSN: 5331-01-328-4160
FSC Code: 5331
MPN: 21526726

5331-01-194-9954 (21542920)

NIIN: 01-194-9954
In stock
NSN: 5331-01-194-9954
FSC Code: 5331
MPN: 21542920

5331-01-139-4696 (21542960)

NIIN: 01-139-4696
In stock
NSN: 5331-01-139-4696
FSC Code: 5331
MPN: 21542960

5331-01-106-8954 (21542934)

NIIN: 01-106-8954
In stock
NSN: 5331-01-106-8954
FSC Code: 5331
MPN: 21542934

5331-01-139-4697 (21542961)

NIIN: 01-139-4697
In stock
NSN: 5331-01-139-4697
FSC Code: 5331
MPN: 21542961

5331-01-193-9398 (21554811)

NIIN: 01-193-9398
In stock
NSN: 5331-01-193-9398
FSC Code: 5331
MPN: 21554811

5331-01-227-5603 (21542944)

NIIN: 01-227-5603
In stock
NSN: 5331-01-227-5603
FSC Code: 5331
MPN: 21542944

5331-01-149-9613 (22340686)

NIIN: 01-149-9613
In stock
NSN: 5331-01-149-9613
FSC Code: 5331
MPN: 22340686

5331-01-149-9614 (22340418)

NIIN: 01-149-9614
In stock
NSN: 5331-01-149-9614
FSC Code: 5331
MPN: 22340418

5331-01-137-6893 (22340447)

NIIN: 01-137-6893
In stock
NSN: 5331-01-137-6893
FSC Code: 5331
MPN: 22340447

5331-01-150-1144 (22341215)

NIIN: 01-150-1144
In stock
NSN: 5331-01-150-1144
FSC Code: 5331
MPN: 22341215

5331-01-137-6896 (22340615)

NIIN: 01-137-6896
In stock
NSN: 5331-01-137-6896
FSC Code: 5331
MPN: 22340615

5331-01-137-6898 (22340138)

NIIN: 01-137-6898
In stock
NSN: 5331-01-137-6898
FSC Code: 5331
MPN: 22340138

5331-01-289-2491 (22340804)

NIIN: 01-289-2491
In stock
NSN: 5331-01-289-2491
FSC Code: 5331
MPN: 22340804

5331-01-150-1143 (22341233)

NIIN: 01-150-1143
In stock
NSN: 5331-01-150-1143
FSC Code: 5331
MPN: 22341233

5331-01-328-4161 (22612121)

NIIN: 01-328-4161
In stock
NSN: 5331-01-328-4161
FSC Code: 5331
MPN: 22612121

5331-01-288-1071 (23009234)

NIIN: 01-288-1071
In stock
NSN: 5331-01-288-1071
FSC Code: 5331
MPN: 23009234

5331-01-206-3206 (23013262)

NIIN: 01-206-3206
In stock
NSN: 5331-01-206-3206
FSC Code: 5331
MPN: 23013262

5331-01-291-5078 (23016014)

NIIN: 01-291-5078
In stock
NSN: 5331-01-291-5078
FSC Code: 5331
MPN: 23016014

5331-01-216-5702 (23018245)

NIIN: 01-216-5702
In stock
NSN: 5331-01-216-5702
FSC Code: 5331
MPN: 23018245

5331-01-216-5703 (23018247)

NIIN: 01-216-5703
In stock
NSN: 5331-01-216-5703
FSC Code: 5331
MPN: 23018247

5331-01-219-2548 (23018753)

NIIN: 01-219-2548
In stock
NSN: 5331-01-219-2548
FSC Code: 5331
MPN: 23018753

5331-01-247-8519 (23019652)

NIIN: 01-247-8519
In stock
NSN: 5331-01-247-8519
FSC Code: 5331
MPN: 23019652

5331-01-308-3247 (23031655)

NIIN: 01-308-3247
In stock
NSN: 5331-01-308-3247
FSC Code: 5331
MPN: 23031655