Skip to content
News Industries All Catagories Excess Inventory Management Solutions Sitemap

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.

5331-01-470-5159 (51M7042)

NIIN: 01-470-5159
In stock
NSN: 5331-01-470-5159
FSC Code: 5331
MPN: 51M7042

5331-01-471-7464 (51M7040)

NIIN: 01-471-7464
In stock
NSN: 5331-01-471-7464
FSC Code: 5331
MPN: 51M7040

5331-01-475-3950 (51M7039)

NIIN: 01-475-3950
In stock
NSN: 5331-01-475-3950
FSC Code: 5331
MPN: 51M7039

5331-01-098-9983 (997C669)

NIIN: 01-098-9983
In stock
NSN: 5331-01-098-9983
FSC Code: 5331
MPN: 997C669

5331-00-359-4418 (99-73)

NIIN: 00-359-4418
In stock
NSN: 5331-00-359-4418
FSC Code: 5331
MPN: 9973

5331-01-439-0893 (5-194C873-70)

NIIN: 01-439-0893
In stock
NSN: 5331-01-439-0893
FSC Code: 5331
MPN: 5194C87370

5331-01-561-9731 (5-193-V884-75)

NIIN: 01-561-9731
In stock
NSN: 5331-01-561-9731
FSC Code: 5331
MPN: 5193V88475

5331-01-389-9939 (5-194E515-80)

NIIN: 01-389-9939
In stock
NSN: 5331-01-389-9939
FSC Code: 5331
MPN: 5194E51580

5331-01-349-2829 (PARKER)

NIIN: 01-349-2829
In stock
NSN: 5331-01-349-2829
FSC Code: 5331
MPN: PARKER

5331-00-359-4550 (99-6)

NIIN: 00-359-4550
In stock
NSN: 5331-00-359-4550
FSC Code: 5331
MPN: 996

5331-01-419-9924 (518980PC21)

NIIN: 01-419-9924
In stock
NSN: 5331-01-419-9924
FSC Code: 5331
MPN: 518980PC21

5331-01-420-4682 (518980PC19)

NIIN: 01-420-4682
In stock
NSN: 5331-01-420-4682
FSC Code: 5331
MPN: 518980PC19

5331-01-420-4683 (518980PC22)

NIIN: 01-420-4683
In stock
NSN: 5331-01-420-4683
FSC Code: 5331
MPN: 518980PC22

5331-01-420-4681 (518980PC20)

NIIN: 01-420-4681
In stock
NSN: 5331-01-420-4681
FSC Code: 5331
MPN: 518980PC20

5331-01-421-9894 (518958PC21)

NIIN: 01-421-9894
In stock
NSN: 5331-01-421-9894
FSC Code: 5331
MPN: 518958PC21

5331-01-421-9890 (518958PC19)

NIIN: 01-421-9890
In stock
NSN: 5331-01-421-9890
FSC Code: 5331
MPN: 518958PC19

5331-01-421-9895 (518958PC20)

NIIN: 01-421-9895
In stock
NSN: 5331-01-421-9895
FSC Code: 5331
MPN: 518958PC20

5331-01-421-9888 (518958PC11)

NIIN: 01-421-9888
In stock
NSN: 5331-01-421-9888
FSC Code: 5331
MPN: 518958PC11

5331-01-421-9891 (518958PC18)

NIIN: 01-421-9891
In stock
NSN: 5331-01-421-9891
FSC Code: 5331
MPN: 518958PC18

5331-01-271-9608 (995-6379)

NIIN: 01-271-9608
In stock
NSN: 5331-01-271-9608
FSC Code: 5331
MPN: 9956379

5331-01-433-0983 (518920PC32)

NIIN: 01-433-0983
In stock
NSN: 5331-01-433-0983
FSC Code: 5331
MPN: 518920PC32

5331-01-433-0986 (518920PC34)

NIIN: 01-433-0986
In stock
NSN: 5331-01-433-0986
FSC Code: 5331
MPN: 518920PC34

5331-01-433-0984 (518920PC33)

NIIN: 01-433-0984
In stock
NSN: 5331-01-433-0984
FSC Code: 5331
MPN: 518920PC33

5331-00-599-6551 (994H92)

NIIN: 00-599-6551
In stock
NSN: 5331-00-599-6551
FSC Code: 5331
MPN: 994H92

5331-00-119-7595 (99-4928-012)

NIIN: 00-119-7595
In stock
NSN: 5331-00-119-7595
FSC Code: 5331
MPN: 994928012

5331-00-119-7620 (99-4928-500)

NIIN: 00-119-7620
In stock
NSN: 5331-00-119-7620
FSC Code: 5331
MPN: 994928500

5331-00-119-7608 (99-4928-020)

NIIN: 00-119-7608
In stock
NSN: 5331-00-119-7608
FSC Code: 5331
MPN: 994928020

5331-01-090-7995 (99-4782-03)

NIIN: 01-090-7995
In stock
NSN: 5331-01-090-7995
FSC Code: 5331
MPN: 99478203

5331-01-465-1472 (518-5794753)

NIIN: 01-465-1472
In stock
NSN: 5331-01-465-1472
FSC Code: 5331
MPN: 5185794753

5331-01-236-4370 (99-4782-10)

NIIN: 01-236-4370
In stock
NSN: 5331-01-236-4370
FSC Code: 5331
MPN: 99478210

5331-01-236-4372 (99-4781-140)

NIIN: 01-236-4372
In stock
NSN: 5331-01-236-4372
FSC Code: 5331
MPN: 994781140

5331-01-090-7996 (99-4782-11)

NIIN: 01-090-7996
In stock
NSN: 5331-01-090-7996
FSC Code: 5331
MPN: 99478211

5331-01-077-3149 (99-4781-115)

NIIN: 01-077-3149
In stock
NSN: 5331-01-077-3149
FSC Code: 5331
MPN: 994781115

5331-01-229-2324 (99-4781-022)

NIIN: 01-229-2324
In stock
NSN: 5331-01-229-2324
FSC Code: 5331
MPN: 994781022

5331-01-240-5223 (99-4781-040)

NIIN: 01-240-5223
In stock
NSN: 5331-01-240-5223
FSC Code: 5331
MPN: 994781040

5331-01-466-1435 (518-5794759)

NIIN: 01-466-1435
In stock
NSN: 5331-01-466-1435
FSC Code: 5331
MPN: 5185794759

5331-01-229-2325 (99-4781-161)

NIIN: 01-229-2325
In stock
NSN: 5331-01-229-2325
FSC Code: 5331
MPN: 994781161

5331-01-465-1473 (518-5794753)

NIIN: 01-465-1473
In stock
NSN: 5331-01-465-1473
FSC Code: 5331
MPN: 5185794753

5331-01-229-2327 (99-4781-017)

NIIN: 01-229-2327
In stock
NSN: 5331-01-229-2327
FSC Code: 5331
MPN: 994781017

5331-01-242-9528 (99-4781-027)

NIIN: 01-242-9528
In stock
NSN: 5331-01-242-9528
FSC Code: 5331
MPN: 994781027

5331-01-077-3150 (99-4781-138)

NIIN: 01-077-3150
In stock
NSN: 5331-01-077-3150
FSC Code: 5331
MPN: 994781138

5331-01-229-2326 (99-4781-016)

NIIN: 01-229-2326
In stock
NSN: 5331-01-229-2326
FSC Code: 5331
MPN: 994781016

5331-01-089-9792 (99-4781-025)

NIIN: 01-089-9792
In stock
NSN: 5331-01-089-9792
FSC Code: 5331
MPN: 994781025

5331-00-180-9722 (99-4771)

NIIN: 00-180-9722
In stock
NSN: 5331-00-180-9722
FSC Code: 5331
MPN: 994771

5331-01-278-5223 (99-4685-119)

NIIN: 01-278-5223
In stock
NSN: 5331-01-278-5223
FSC Code: 5331
MPN: 994685119

5331-01-129-2011 (99-4685-155)

NIIN: 01-129-2011
In stock
NSN: 5331-01-129-2011
FSC Code: 5331
MPN: 994685155

5331-00-497-3342 (99-4685-158)

NIIN: 00-497-3342
In stock
NSN: 5331-00-497-3342
FSC Code: 5331
MPN: 994685158

5331-01-131-2278 (99-4685-135)

NIIN: 01-131-2278
In stock
NSN: 5331-01-131-2278
FSC Code: 5331
MPN: 994685135