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.

5331-12-184-0142 (0R63X3WS5-578)

NIIN: 12-184-0142
In stock
NSN: 5331-12-184-0142
FSC Code: 5331
MPN: 0R63X3WS5578

5331-01-183-0984 (2-426)

NIIN: 01-183-0984
In stock
NSN: 5331-01-183-0984
FSC Code: 5331
MPN: 2426

5331-01-275-8668 (2-425-E540-80)

NIIN: 01-275-8668
In stock
NSN: 5331-01-275-8668
FSC Code: 5331
MPN: 2425E54080

5331-01-043-1899 (24263N)

NIIN: 01-043-1899
In stock
NSN: 5331-01-043-1899
FSC Code: 5331
MPN: 24263N

5331-00-837-3098 (2426677-1)

NIIN: 00-837-3098
In stock
NSN: 5331-00-837-3098
FSC Code: 5331
MPN: 24266771

5331-01-244-1086 (2-426E740-75)

NIIN: 01-244-1086
In stock
NSN: 5331-01-244-1086
FSC Code: 5331
MPN: 2426E74075

5331-01-005-0542 (2-426V747-75)

NIIN: 01-005-0542
In stock
NSN: 5331-01-005-0542
FSC Code: 5331
MPN: 2426V74775

5331-01-150-5926 (2-427)

NIIN: 01-150-5926
In stock
NSN: 5331-01-150-5926
FSC Code: 5331
MPN: 2427

5331-00-580-9771 (2-427)

NIIN: 00-580-9771
In stock
NSN: 5331-00-580-9771
FSC Code: 5331
MPN: 2427

5331-01-013-0222 (24-275-01198)

NIIN: 01-013-0222
In stock
NSN: 5331-01-013-0222
FSC Code: 5331
MPN: 2427501198

5331-01-013-1884 (24-275-01198-1)

NIIN: 01-013-1884
In stock
NSN: 5331-01-013-1884
FSC Code: 5331
MPN: 24275011981

5331-01-005-0543 (2-427-77-545)

NIIN: 01-005-0543
In stock
NSN: 5331-01-005-0543
FSC Code: 5331
MPN: 242777545

5331-01-029-7452 (242-7507)

NIIN: 01-029-7452
In stock
NSN: 5331-01-029-7452
FSC Code: 5331
MPN: 2427507

5331-01-007-4891 (2-428)

NIIN: 01-007-4891
In stock
NSN: 5331-01-007-4891
FSC Code: 5331
MPN: 2428

5331-01-056-8498 (2-427N522-90)

NIIN: 01-056-8498
In stock
NSN: 5331-01-056-8498
FSC Code: 5331
MPN: 2427N52290

5331-01-028-9345 (2-428C147-70)

NIIN: 01-028-9345
In stock
NSN: 5331-01-028-9345
FSC Code: 5331
MPN: 2428C14770

5331-01-107-4960 (2-428N304-75)

NIIN: 01-107-4960
In stock
NSN: 5331-01-107-4960
FSC Code: 5331
MPN: 2428N30475

5331-01-299-3280 (2-428S613-60)

NIIN: 01-299-3280
In stock
NSN: 5331-01-299-3280
FSC Code: 5331
MPN: 2428S61360

5331-00-767-0493 (2-429)

NIIN: 00-767-0493
In stock
NSN: 5331-00-767-0493
FSC Code: 5331
MPN: 2429

5331-01-323-2924 (2429B88-H06)

NIIN: 01-323-2924
In stock
NSN: 5331-01-323-2924
FSC Code: 5331
MPN: 2429B88H06

5331-01-066-4909 (2-429-N674-70)

NIIN: 01-066-4909
In stock
NSN: 5331-01-066-4909
FSC Code: 5331
MPN: 2429N67470

5331-00-210-5220 (2429B88-H03)

NIIN: 00-210-5220
In stock
NSN: 5331-00-210-5220
FSC Code: 5331
MPN: 2429B88H03

5331-00-225-4695 (242Y1-18)

NIIN: 00-225-4695
In stock
NSN: 5331-00-225-4695
FSC Code: 5331
MPN: 242Y118

5331-01-104-4700 (24-2X3)

NIIN: 01-104-4700
In stock
NSN: 5331-01-104-4700
FSC Code: 5331
MPN: 242X3

5331-01-317-6284 (24311-000400)

NIIN: 01-317-6284
In stock
NSN: 5331-01-317-6284
FSC Code: 5331
MPN: 24311000400

5331-00-253-2379 (2-431-E515-8)

NIIN: 00-253-2379
In stock
NSN: 5331-00-253-2379
FSC Code: 5331
MPN: 2431E5158

5331-01-150-5927 (2-432)

NIIN: 01-150-5927
In stock
NSN: 5331-01-150-5927
FSC Code: 5331
MPN: 2432

5331-01-213-0728 (2-432)

NIIN: 01-213-0728
In stock
NSN: 5331-01-213-0728
FSC Code: 5331
MPN: 2432

5331-01-117-9760 (2-433)

NIIN: 01-117-9760
In stock
NSN: 5331-01-117-9760
FSC Code: 5331
MPN: 2433

5331-01-299-3281 (2-432S613-60)

NIIN: 01-299-3281
In stock
NSN: 5331-01-299-3281
FSC Code: 5331
MPN: 2432S61360

5331-00-255-4667 (2-433)

NIIN: 00-255-4667
In stock
NSN: 5331-00-255-4667
FSC Code: 5331
MPN: 2433

5331-01-013-3033 (2-433C873-70)

NIIN: 01-013-3033
In stock
NSN: 5331-01-013-3033
FSC Code: 5331
MPN: 2433C87370

5331-01-325-5810 (24341-000150)

NIIN: 01-325-5810
In stock
NSN: 5331-01-325-5810
FSC Code: 5331
MPN: 24341000150

5331-00-684-7735 (2-434)

NIIN: 00-684-7735
In stock
NSN: 5331-00-684-7735
FSC Code: 5331
MPN: 2434

5331-01-099-7989 (2-433N103-70)

NIIN: 01-099-7989
In stock
NSN: 5331-01-099-7989
FSC Code: 5331
MPN: 2433N10370

5331-00-403-9802 (2-434E515-8)

NIIN: 00-403-9802
In stock
NSN: 5331-00-403-9802
FSC Code: 5331
MPN: 2434E5158

5331-01-552-1502 (02/202944)

NIIN: 01-552-1502
In stock
NSN: 5331-01-552-1502
FSC Code: 5331
MPN: 02202944

5331-01-147-2450 (2-435)

NIIN: 01-147-2450
In stock
NSN: 5331-01-147-2450
FSC Code: 5331
MPN: 2435

5331-99-514-4165 (F9293-000796)

NIIN: 99-514-4165
In stock
NSN: 5331-99-514-4165
FSC Code: 5331
MPN: F9293000796

5331-01-552-1504 (02/202981)

NIIN: 01-552-1504
In stock
NSN: 5331-01-552-1504
FSC Code: 5331
MPN: 02202981

5331-00-579-7926 (2-435)

NIIN: 00-579-7926
In stock
NSN: 5331-00-579-7926
FSC Code: 5331
MPN: 2435

5331-01-552-1509 (02/202476)

NIIN: 01-552-1509
In stock
NSN: 5331-01-552-1509
FSC Code: 5331
MPN: 02202476

5331-01-481-2514 (02/911141)

NIIN: 01-481-2514
In stock
NSN: 5331-01-481-2514
FSC Code: 5331
MPN: 02911141

5331-01-189-5423 (2-434V-709-90)

NIIN: 01-189-5423
In stock
NSN: 5331-01-189-5423
FSC Code: 5331
MPN: 2434V70990

5331-01-552-1508 (02/202979)

NIIN: 01-552-1508
In stock
NSN: 5331-01-552-1508
FSC Code: 5331
MPN: 02202979

5331-01-563-5629 (0176-164 20176164)

NIIN: 01-563-5629
In stock
NSN: 5331-01-563-5629
FSC Code: 5331
MPN: 017616420176164

5331-01-559-0572 (0175-239 20175239)

NIIN: 01-559-0572
In stock
NSN: 5331-01-559-0572
FSC Code: 5331
MPN: 017523920175239

5331-01-558-5129 (02/912309)

NIIN: 01-558-5129
In stock
NSN: 5331-01-558-5129
FSC Code: 5331
MPN: 02912309