Skip to content

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.

5331-01-545-0009 (114299-32570)

NIIN: 01-545-0009
In stock
NSN: 5331-01-545-0009
FSC Code: 5331
MPN: 11429932570

5331-00-065-4826 (347070R1)

NIIN: 00-065-4826
In stock
NSN: 5331-00-065-4826
FSC Code: 5331
MPN: 347070R1

5331-01-393-2862 (11420-5362-0)

NIIN: 01-393-2862
In stock
NSN: 5331-01-393-2862
FSC Code: 5331
MPN: 1142053620

5331-00-143-7636 (34665-24)

NIIN: 00-143-7636
In stock
NSN: 5331-00-143-7636
FSC Code: 5331
MPN: 3466524

5331-00-947-4182 (34665-163)

NIIN: 00-947-4182
In stock
NSN: 5331-00-947-4182
FSC Code: 5331
MPN: 34665163

5331-00-893-6099 (34665-149)

NIIN: 00-893-6099
In stock
NSN: 5331-00-893-6099
FSC Code: 5331
MPN: 34665149

5331-00-850-5552 (34665-18)

NIIN: 00-850-5552
In stock
NSN: 5331-00-850-5552
FSC Code: 5331
MPN: 3466518

5331-00-123-2754 (346-6)

NIIN: 00-123-2754
In stock
NSN: 5331-00-123-2754
FSC Code: 5331
MPN: 3466

5331-00-457-2736 (34655-152)

NIIN: 00-457-2736
In stock
NSN: 5331-00-457-2736
FSC Code: 5331
MPN: 34655152

5331-01-346-3485 (1141-001)

NIIN: 01-346-3485
In stock
NSN: 5331-01-346-3485
FSC Code: 5331
MPN: 1141001

5331-00-702-5286 (3-464PS1-30-5)

NIIN: 00-702-5286
In stock
NSN: 5331-00-702-5286
FSC Code: 5331
MPN: 3464PS1305

5331-01-454-1208 (150-17107A)

NIIN: 01-454-1208
In stock
NSN: 5331-01-454-1208
FSC Code: 5331
MPN: 15017107A

5331-01-454-1218 (152-17107A)

NIIN: 01-454-1218
In stock
NSN: 5331-01-454-1218
FSC Code: 5331
MPN: 15217107A

5331-01-454-1222 (280-17107A)

NIIN: 01-454-1222
In stock
NSN: 5331-01-454-1222
FSC Code: 5331
MPN: 28017107A

5331-01-454-1219 (258-17107A)

NIIN: 01-454-1219
In stock
NSN: 5331-01-454-1219
FSC Code: 5331
MPN: 25817107A

5331-01-454-1225 (129-17107A)

NIIN: 01-454-1225
In stock
NSN: 5331-01-454-1225
FSC Code: 5331
MPN: 12917107A

5331-01-454-1209 (256-17107A)

NIIN: 01-454-1209
In stock
NSN: 5331-01-454-1209
FSC Code: 5331
MPN: 25617107A

5331-01-228-4237 (346-2347)

NIIN: 01-228-4237
In stock
NSN: 5331-01-228-4237
FSC Code: 5331
MPN: 3462347

5331-01-347-9136 (11-406001)

NIIN: 01-347-9136
In stock
NSN: 5331-01-347-9136
FSC Code: 5331
MPN: 11406001

5331-01-151-2727 (3462-3)

NIIN: 01-151-2727
In stock
NSN: 5331-01-151-2727
FSC Code: 5331
MPN: 34623

5331-01-064-8711 (346-15)

NIIN: 01-064-8711
In stock
NSN: 5331-01-064-8711
FSC Code: 5331
MPN: 34615

5331-01-425-1867 (SMS1586114.3X5.7)

NIIN: 01-425-1867
In stock
NSN: 5331-01-425-1867
FSC Code: 5331
MPN: SMS15861143X57

5331-01-076-0365 (3460-70)

NIIN: 01-076-0365
In stock
NSN: 5331-01-076-0365
FSC Code: 5331
MPN: 346070

5331-01-298-4741 (3460-462P200A)

NIIN: 01-298-4741
In stock
NSN: 5331-01-298-4741
FSC Code: 5331
MPN: 3460462P200A

5331-00-618-6111 (346052ALT2PCALL)

NIIN: 00-618-6111
In stock
NSN: 5331-00-618-6111
FSC Code: 5331
MPN: 346052ALT2PCALL

5331-01-228-4110 (3460-150-21)

NIIN: 01-228-4110
In stock
NSN: 5331-01-228-4110
FSC Code: 5331
MPN: 346015021

5331-01-228-4109 (3460-150-19)

NIIN: 01-228-4109
In stock
NSN: 5331-01-228-4109
FSC Code: 5331
MPN: 346015019

5331-14-235-2973 (113-9X3-53PC851)

NIIN: 14-235-2973
In stock
NSN: 5331-14-235-2973
FSC Code: 5331
MPN: 1139X353PC851

5331-01-349-9407 (11-39MIL1-2006-14)

NIIN: 01-349-9407
In stock
NSN: 5331-01-349-9407
FSC Code: 5331
MPN: 1139MIL1200614

5331-14-410-0820 (113-97X2-62PD7014A)

NIIN: 14-410-0820
In stock
NSN: 5331-14-410-0820
FSC Code: 5331
MPN: 11397X262PD7014A

5331-00-549-7958 (3455-01)

NIIN: 00-549-7958
In stock
NSN: 5331-00-549-7958
FSC Code: 5331
MPN: 345501

5331-01-045-4145 (3454-03995-0187-0334)

NIIN: 01-045-4145
In stock
NSN: 5331-01-045-4145
FSC Code: 5331
MPN: 34540399501870334

5331-01-314-2965 (3454-0063)

NIIN: 01-314-2965
In stock
NSN: 5331-01-314-2965
FSC Code: 5331
MPN: 34540063

5331-01-155-1776 (3454-0003)

NIIN: 01-155-1776
In stock
NSN: 5331-01-155-1776
FSC Code: 5331
MPN: 34540003

5331-01-064-9767 (345-27)

NIIN: 01-064-9767
In stock
NSN: 5331-01-064-9767
FSC Code: 5331
MPN: 34527

5331-01-543-2758 (11380PC7)

NIIN: 01-543-2758
In stock
NSN: 5331-01-543-2758
FSC Code: 5331
MPN: 11380PC7

5331-01-258-7738 (3450WA100FL-4)

NIIN: 01-258-7738
In stock
NSN: 5331-01-258-7738
FSC Code: 5331
MPN: 3450WA100FL4

5331-01-460-0313 (113-6303)

NIIN: 01-460-0313
In stock
NSN: 5331-01-460-0313
FSC Code: 5331
MPN: 1136303

5331-00-952-0100 (3-4-47-071)

NIIN: 00-952-0100
In stock
NSN: 5331-00-952-0100
FSC Code: 5331
MPN: 3447071

5331-00-052-3282 (34464-31)

NIIN: 00-052-3282
In stock
NSN: 5331-00-052-3282
FSC Code: 5331
MPN: 3446431

5331-01-522-1805 (113533-60)

NIIN: 01-522-1805
In stock
NSN: 5331-01-522-1805
FSC Code: 5331
MPN: 11353360

5331-01-268-9747 (34411-122-K3)

NIIN: 01-268-9747
In stock
NSN: 5331-01-268-9747
FSC Code: 5331
MPN: 34411122K3

5331-01-522-1714 (113533-60)

NIIN: 01-522-1714
In stock
NSN: 5331-01-522-1714
FSC Code: 5331
MPN: 11353360

5331-00-841-2317 (343912R1)

NIIN: 00-841-2317
In stock
NSN: 5331-00-841-2317
FSC Code: 5331
MPN: 343912R1

5331-00-495-7196 (343923R1)

NIIN: 00-495-7196
In stock
NSN: 5331-00-495-7196
FSC Code: 5331
MPN: 343923R1

5331-00-843-9720 (343943R1)

NIIN: 00-843-9720
In stock
NSN: 5331-00-843-9720
FSC Code: 5331
MPN: 343943R1

5331-01-292-2433 (343940R1)

NIIN: 01-292-2433
In stock
NSN: 5331-01-292-2433
FSC Code: 5331
MPN: 343940R1

5331-01-311-5944 (343904R1)

NIIN: 01-311-5944
In stock
NSN: 5331-01-311-5944
FSC Code: 5331
MPN: 343904R1