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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.

5331-00-892-4080 (9778-805R1PC3)

NIIN: 00-892-4080
In stock
NSN: 5331-00-892-4080
FSC Code: 5331
MPN: 9778805R1PC3

5331-01-449-7114 (5-118-B612-70)

NIIN: 01-449-7114
In stock
NSN: 5331-01-449-7114
FSC Code: 5331
MPN: 5118B61270

5331-00-231-7191 (97690-2)

NIIN: 00-231-7191
In stock
NSN: 5331-00-231-7191
FSC Code: 5331
MPN: 976902

5331-01-551-6525 (OR-1-NEOPRENE)

NIIN: 01-551-6525
In stock
NSN: 5331-01-551-6525
FSC Code: 5331
MPN: OR1NEOPRENE

5331-00-801-1609 (9768-201X2PC17)

NIIN: 00-801-1609
In stock
NSN: 5331-00-801-1609
FSC Code: 5331
MPN: 9768201X2PC17

5331-01-149-6227 (976-5)

NIIN: 01-149-6227
In stock
NSN: 5331-01-149-6227
FSC Code: 5331
MPN: 9765

5331-01-205-5621 (975912-1)

NIIN: 01-205-5621
In stock
NSN: 5331-01-205-5621
FSC Code: 5331
MPN: 9759121

5331-01-068-8420 (975-5-16)

NIIN: 01-068-8420
In stock
NSN: 5331-01-068-8420
FSC Code: 5331
MPN: 975516

5331-01-264-0157 (97-5122)

NIIN: 01-264-0157
In stock
NSN: 5331-01-264-0157
FSC Code: 5331
MPN: 975122

5331-00-239-8413 (974-124ALT5)

NIIN: 00-239-8413
In stock
NSN: 5331-00-239-8413
FSC Code: 5331
MPN: 974124ALT5

5331-01-447-4788 (5-1097E515-80)

NIIN: 01-447-4788
In stock
NSN: 5331-01-447-4788
FSC Code: 5331
MPN: 51097E51580

5331-01-498-5292 (5-108-N-60270)

NIIN: 01-498-5292
In stock
NSN: 5331-01-498-5292
FSC Code: 5331
MPN: 5108N60270

5331-01-571-4395 (B0612-705-108)

NIIN: 01-571-4395
In stock
NSN: 5331-01-571-4395
FSC Code: 5331
MPN: B0612705108

5331-00-890-3738 (97255-236PC27)

NIIN: 00-890-3738
In stock
NSN: 5331-00-890-3738
FSC Code: 5331
MPN: 97255236PC27

5331-01-276-8443 (9-723-74-3303)

NIIN: 01-276-8443
In stock
NSN: 5331-01-276-8443
FSC Code: 5331
MPN: 9723743303

5331-00-788-7559 (9-723-47-0001)

NIIN: 00-788-7559
In stock
NSN: 5331-00-788-7559
FSC Code: 5331
MPN: 9723470001

5331-00-054-3671 (972173ABC)

NIIN: 00-054-3671
In stock
NSN: 5331-00-054-3671
FSC Code: 5331
MPN: 972173ABC

5331-01-316-9596 (97202-60)

NIIN: 01-316-9596
In stock
NSN: 5331-01-316-9596
FSC Code: 5331
MPN: 9720260

5331-00-953-0676 (971886-8-668)

NIIN: 00-953-0676
In stock
NSN: 5331-00-953-0676
FSC Code: 5331
MPN: 9718868668

5331-00-475-2700 (971886-1-660)

NIIN: 00-475-2700
In stock
NSN: 5331-00-475-2700
FSC Code: 5331
MPN: 9718861660

5331-00-915-2278 (971886-3-680)

NIIN: 00-915-2278
In stock
NSN: 5331-00-915-2278
FSC Code: 5331
MPN: 9718863680

5331-00-915-2279 (971886-42-680)

NIIN: 00-915-2279
In stock
NSN: 5331-00-915-2279
FSC Code: 5331
MPN: 97188642680

5331-01-292-4013 (971886-136-688)

NIIN: 01-292-4013
In stock
NSN: 5331-01-292-4013
FSC Code: 5331
MPN: 971886136688

5331-00-915-2281 (971886-10-940)

NIIN: 00-915-2281
In stock
NSN: 5331-00-915-2281
FSC Code: 5331
MPN: 97188610940

5331-01-078-4997 (971886-002-680)

NIIN: 01-078-4997
In stock
NSN: 5331-01-078-4997
FSC Code: 5331
MPN: 971886002680

5331-01-292-4012 (971886-104-688)

NIIN: 01-292-4012
In stock
NSN: 5331-01-292-4012
FSC Code: 5331
MPN: 971886104688

5331-00-420-1771 (971886-002-668)

NIIN: 00-420-1771
In stock
NSN: 5331-00-420-1771
FSC Code: 5331
MPN: 971886002668

5331-01-292-7135 (971886-006-699)

NIIN: 01-292-7135
In stock
NSN: 5331-01-292-7135
FSC Code: 5331
MPN: 971886006699

5331-01-565-6361 (510-2-029)

NIIN: 01-565-6361
In stock
NSN: 5331-01-565-6361
FSC Code: 5331
MPN: 5102029

5331-01-507-5447 (5-1017N304-75)

NIIN: 01-507-5447
In stock
NSN: 5331-01-507-5447
FSC Code: 5331
MPN: 51017N30475

5331-01-325-5240 (970P193)

NIIN: 01-325-5240
In stock
NSN: 5331-01-325-5240
FSC Code: 5331
MPN: 970P193

5331-01-245-3837 (9706K14)

NIIN: 01-245-3837
In stock
NSN: 5331-01-245-3837
FSC Code: 5331
MPN: 9706K14

5331-01-569-6104 (5-1010-L1120-70)

NIIN: 01-569-6104
In stock
NSN: 5331-01-569-6104
FSC Code: 5331
MPN: 51010L112070

5331-01-029-6882 (970-300972-1)

NIIN: 01-029-6882
In stock
NSN: 5331-01-029-6882
FSC Code: 5331
MPN: 9703009721

5331-01-561-6006 (510-013)

NIIN: 01-561-6006
In stock
NSN: 5331-01-561-6006
FSC Code: 5331
MPN: 510013

5331-12-316-6829 (51.96501.0415)

NIIN: 12-316-6829
In stock
NSN: 5331-12-316-6829
FSC Code: 5331
MPN: 51965010415

5331-01-310-5186 (968927-4)

NIIN: 01-310-5186
In stock
NSN: 5331-01-310-5186
FSC Code: 5331
MPN: 9689274

5331-01-310-5188 (967944-0)

NIIN: 01-310-5188
In stock
NSN: 5331-01-310-5188
FSC Code: 5331
MPN: 9679440

5331-01-177-5721 (967434-1)

NIIN: 01-177-5721
In stock
NSN: 5331-01-177-5721
FSC Code: 5331
MPN: 9674341

5331-01-317-3980 (967643-8)

NIIN: 01-317-3980
In stock
NSN: 5331-01-317-3980
FSC Code: 5331
MPN: 9676438

5331-00-466-0728 (9672M09P12)

NIIN: 00-466-0728
In stock
NSN: 5331-00-466-0728
FSC Code: 5331
MPN: 9672M09P12

5331-00-460-4988 (9672M09P04)

NIIN: 00-460-4988
In stock
NSN: 5331-00-460-4988
FSC Code: 5331
MPN: 9672M09P04

5331-00-411-6878 (9672M09P08)

NIIN: 00-411-6878
In stock
NSN: 5331-00-411-6878
FSC Code: 5331
MPN: 9672M09P08

5331-01-326-0978 (9666-799-1)

NIIN: 01-326-0978
In stock
NSN: 5331-01-326-0978
FSC Code: 5331
MPN: 96667991

5331-01-393-1328 (509E803BRPN12)

NIIN: 01-393-1328
In stock
NSN: 5331-01-393-1328
FSC Code: 5331
MPN: 509E803BRPN12

5331-01-098-0470 (966549-1)

NIIN: 01-098-0470
In stock
NSN: 5331-01-098-0470
FSC Code: 5331
MPN: 9665491

5331-01-245-4093 (96515K26)

NIIN: 01-245-4093
In stock
NSN: 5331-01-245-4093
FSC Code: 5331
MPN: 96515K26

5331-01-244-8960 (96515K25)

NIIN: 01-244-8960
In stock
NSN: 5331-01-244-8960
FSC Code: 5331
MPN: 96515K25