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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.

5331-01-280-7519 (304-R)

NIIN: 01-280-7519
In stock
NSN: 5331-01-280-7519
FSC Code: 5331
MPN: 304R

5331-00-124-9789 (3-04N168-8)

NIIN: 00-124-9789
In stock
NSN: 5331-00-124-9789
FSC Code: 5331
MPN: 304N1688

5331-01-540-3784 (101A926U01)

NIIN: 01-540-3784
In stock
NSN: 5331-01-540-3784
FSC Code: 5331
MPN: 101A926U01

5331-01-509-8600 (101A931U01)

NIIN: 01-509-8600
In stock
NSN: 5331-01-509-8600
FSC Code: 5331
MPN: 101A931U01

5331-01-546-4689 (101A926U01CP)

NIIN: 01-546-4689
In stock
NSN: 5331-01-546-4689
FSC Code: 5331
MPN: 101A926U01CP

5331-01-407-3512 (101A812U01)

NIIN: 01-407-3512
In stock
NSN: 5331-01-407-3512
FSC Code: 5331
MPN: 101A812U01

5331-01-546-4716 (101A714U01CP)

NIIN: 01-546-4716
In stock
NSN: 5331-01-546-4716
FSC Code: 5331
MPN: 101A714U01CP

5331-01-546-4700 (738-053-001CPCP)

NIIN: 01-546-4700
In stock
NSN: 5331-01-546-4700
FSC Code: 5331
MPN: 738053001CPCP

5331-01-546-4926 (101A710U01CP)

NIIN: 01-546-4926
In stock
NSN: 5331-01-546-4926
FSC Code: 5331
MPN: 101A710U01CP

5331-01-540-3785 (101A710U01)

NIIN: 01-540-3785
In stock
NSN: 5331-01-540-3785
FSC Code: 5331
MPN: 101A710U01

5331-01-543-2092 (101A181U01)

NIIN: 01-543-2092
In stock
NSN: 5331-01-543-2092
FSC Code: 5331
MPN: 101A181U01

5331-00-005-0604 (3046999R1)

NIIN: 00-005-0604
In stock
NSN: 5331-00-005-0604
FSC Code: 5331
MPN: 3046999R1

5331-01-292-3149 (3046994R1)

NIIN: 01-292-3149
In stock
NSN: 5331-01-292-3149
FSC Code: 5331
MPN: 3046994R1

5331-01-385-6890 (1018Z10231)

NIIN: 01-385-6890
In stock
NSN: 5331-01-385-6890
FSC Code: 5331
MPN: 1018Z10231

5331-01-362-6161 (1018Z10486)

NIIN: 01-362-6161
In stock
NSN: 5331-01-362-6161
FSC Code: 5331
MPN: 1018Z10486

5331-01-385-6823 (1018Z10232)

NIIN: 01-385-6823
In stock
NSN: 5331-01-385-6823
FSC Code: 5331
MPN: 1018Z10232

5331-00-133-1970 (3042934R1)

NIIN: 00-133-1970
In stock
NSN: 5331-00-133-1970
FSC Code: 5331
MPN: 3042934R1

5331-01-395-2150 (58-008-45)

NIIN: 01-395-2150
In stock
NSN: 5331-01-395-2150
FSC Code: 5331
MPN: 5800845

5331-01-151-5066 (304073-00-8)

NIIN: 01-151-5066
In stock
NSN: 5331-01-151-5066
FSC Code: 5331
MPN: 304073008

5331-01-528-6732 (10181320CC)

NIIN: 01-528-6732
In stock
NSN: 5331-01-528-6732
FSC Code: 5331
MPN: 10181320CC

5331-00-618-6112 (3037F1-000PC120)

NIIN: 00-618-6112
In stock
NSN: 5331-00-618-6112
FSC Code: 5331
MPN: 3037F1000PC120

5331-00-542-1362 (3037F1-000PC119)

NIIN: 00-542-1362
In stock
NSN: 5331-00-542-1362
FSC Code: 5331
MPN: 3037F1000PC119

5331-00-995-9660 (3037-1422)

NIIN: 00-995-9660
In stock
NSN: 5331-00-995-9660
FSC Code: 5331
MPN: 30371422

5331-00-995-7151 (3037-1423)

NIIN: 00-995-7151
In stock
NSN: 5331-00-995-7151
FSC Code: 5331
MPN: 30371423

5331-01-108-7562 (3036T83P01)

NIIN: 01-108-7562
In stock
NSN: 5331-01-108-7562
FSC Code: 5331
MPN: 3036T83P01

5331-01-304-7782 (30-3636-19)

NIIN: 01-304-7782
In stock
NSN: 5331-01-304-7782
FSC Code: 5331
MPN: 30363619

5331-01-062-3741 (3035T70P09)

NIIN: 01-062-3741
In stock
NSN: 5331-01-062-3741
FSC Code: 5331
MPN: 3035T70P09

5331-01-185-0358 (3035T70P11)

NIIN: 01-185-0358
In stock
NSN: 5331-01-185-0358
FSC Code: 5331
MPN: 3035T70P11

5331-01-194-9636 (3035T70P12)

NIIN: 01-194-9636
In stock
NSN: 5331-01-194-9636
FSC Code: 5331
MPN: 3035T70P12

5331-01-062-3740 (3035T70P08)

NIIN: 01-062-3740
In stock
NSN: 5331-01-062-3740
FSC Code: 5331
MPN: 3035T70P08

5331-01-435-7562 (10-1760MOD412)

NIIN: 01-435-7562
In stock
NSN: 5331-01-435-7562
FSC Code: 5331
MPN: 101760MOD412

5331-01-060-4865 (3035T71P04)

NIIN: 01-060-4865
In stock
NSN: 5331-01-060-4865
FSC Code: 5331
MPN: 3035T71P04

5331-01-062-3742 (3035T70P06)

NIIN: 01-062-3742
In stock
NSN: 5331-01-062-3742
FSC Code: 5331
MPN: 3035T70P06

5331-01-230-1762 (3035T70P07)

NIIN: 01-230-1762
In stock
NSN: 5331-01-230-1762
FSC Code: 5331
MPN: 3035T70P07

5331-01-208-0299 (3035T70P02)

NIIN: 01-208-0299
In stock
NSN: 5331-01-208-0299
FSC Code: 5331
MPN: 3035T70P02

5331-01-063-9122 (3035T70P04)

NIIN: 01-063-9122
In stock
NSN: 5331-01-063-9122
FSC Code: 5331
MPN: 3035T70P04

5331-01-226-4963 (3035T70P01)

NIIN: 01-226-4963
In stock
NSN: 5331-01-226-4963
FSC Code: 5331
MPN: 3035T70P01

5331-01-292-9919 (30354697-006)

NIIN: 01-292-9919
In stock
NSN: 5331-01-292-9919
FSC Code: 5331
MPN: 30354697006

5331-01-084-1845 (30354697-512)

NIIN: 01-084-1845
In stock
NSN: 5331-01-084-1845
FSC Code: 5331
MPN: 30354697512

5331-01-098-5983 (30354697-514)

NIIN: 01-098-5983
In stock
NSN: 5331-01-098-5983
FSC Code: 5331
MPN: 30354697514

5331-01-349-6156 (10-1736-3)

NIIN: 01-349-6156
In stock
NSN: 5331-01-349-6156
FSC Code: 5331
MPN: 1017363

5331-00-405-2491 (3-03486-5)

NIIN: 00-405-2491
In stock
NSN: 5331-00-405-2491
FSC Code: 5331
MPN: 3034865

5331-01-408-6636 (10-1733)

NIIN: 01-408-6636
In stock
NSN: 5331-01-408-6636
FSC Code: 5331
MPN: 101733

5331-01-383-3441 (10-1735-51)

NIIN: 01-383-3441
In stock
NSN: 5331-01-383-3441
FSC Code: 5331
MPN: 10173551

5331-01-304-7783 (30-3153-19)

NIIN: 01-304-7783
In stock
NSN: 5331-01-304-7783
FSC Code: 5331
MPN: 30315319

5331-01-304-8492 (303-0540)

NIIN: 01-304-8492
In stock
NSN: 5331-01-304-8492
FSC Code: 5331
MPN: 3030540

5331-01-565-2328 (101-63700)

NIIN: 01-565-2328
In stock
NSN: 5331-01-565-2328
FSC Code: 5331
MPN: 10163700

5331-00-322-2149 (3-02N168-8)

NIIN: 00-322-2149
In stock
NSN: 5331-00-322-2149
FSC Code: 5331
MPN: 302N1688