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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.

5331-00-606-9839 (2-33C147-7)

NIIN: 00-606-9839
In stock
NSN: 5331-00-606-9839
FSC Code: 5331
MPN: 233C1477

5331-01-005-4062 (2-340)

NIIN: 01-005-4062
In stock
NSN: 5331-01-005-4062
FSC Code: 5331
MPN: 2340

5331-01-340-8206 (01/460002)

NIIN: 01-340-8206
In stock
NSN: 5331-01-340-8206
FSC Code: 5331
MPN: 01460002

5331-01-340-8202 (01/463531)

NIIN: 01-340-8202
In stock
NSN: 5331-01-340-8202
FSC Code: 5331
MPN: 01463531

5331-01-340-8204 (01/397417)

NIIN: 01-340-8204
In stock
NSN: 5331-01-340-8204
FSC Code: 5331
MPN: 01397417

5331-00-058-1822 (2-340B278-7)

NIIN: 00-058-1822
In stock
NSN: 5331-00-058-1822
FSC Code: 5331
MPN: 2340B2787

5331-00-492-2911 (2-340C147-7)

NIIN: 00-492-2911
In stock
NSN: 5331-00-492-2911
FSC Code: 5331
MPN: 2340C1477

5331-00-144-9454 (2-340E515-80)

NIIN: 00-144-9454
In stock
NSN: 5331-00-144-9454
FSC Code: 5331
MPN: 2340E51580

5331-00-579-7924 (2-341)

NIIN: 00-579-7924
In stock
NSN: 5331-00-579-7924
FSC Code: 5331
MPN: 2341

5331-00-993-9652 (2-341)

NIIN: 00-993-9652
In stock
NSN: 5331-00-993-9652
FSC Code: 5331
MPN: 2341

5331-00-222-1707 (2-341)

NIIN: 00-222-1707
In stock
NSN: 5331-00-222-1707
FSC Code: 5331
MPN: 2341

5331-01-175-0311 (2-341)

NIIN: 01-175-0311
In stock
NSN: 5331-01-175-0311
FSC Code: 5331
MPN: 2341

5331-00-058-6462 (2-341)

NIIN: 00-058-6462
In stock
NSN: 5331-00-058-6462
FSC Code: 5331
MPN: 2341

5331-01-149-0152 (2-341-4058-90)

NIIN: 01-149-0152
In stock
NSN: 5331-01-149-0152
FSC Code: 5331
MPN: 2341405890

5331-01-330-9612 (23414-120000)

NIIN: 01-330-9612
In stock
NSN: 5331-01-330-9612
FSC Code: 5331
MPN: 23414120000

5331-01-021-4597 (234-144-70)

NIIN: 01-021-4597
In stock
NSN: 5331-01-021-4597
FSC Code: 5331
MPN: 23414470

5331-01-145-9066 (2-341-E798-70)

NIIN: 01-145-9066
In stock
NSN: 5331-01-145-9066
FSC Code: 5331
MPN: 2341E79870

5331-14-390-8240 (01000C0000A31B5)

NIIN: 14-390-8240
In stock
NSN: 5331-14-390-8240
FSC Code: 5331
MPN: 01000C0000A31B5

5331-14-284-9669 (01000B30G4W03P8)

NIIN: 14-284-9669
In stock
NSN: 5331-14-284-9669
FSC Code: 5331
MPN: 01000B30G4W03P8

5331-14-386-1666 (01000C0000A23B7)

NIIN: 14-386-1666
In stock
NSN: 5331-14-386-1666
FSC Code: 5331
MPN: 01000C0000A23B7

5331-01-142-4438 (2-341C557-7)

NIIN: 01-142-4438
In stock
NSN: 5331-01-142-4438
FSC Code: 5331
MPN: 2341C5577

5331-14-445-4310 (01000C0000A31B3)

NIIN: 14-445-4310
In stock
NSN: 5331-14-445-4310
FSC Code: 5331
MPN: 01000C0000A31B3

5331-14-278-5548 (01000C0000A20B7)

NIIN: 14-278-5548
In stock
NSN: 5331-14-278-5548
FSC Code: 5331
MPN: 01000C0000A20B7

5331-14-445-4313 (01000C5000A24B7)

NIIN: 14-445-4313
In stock
NSN: 5331-14-445-4313
FSC Code: 5331
MPN: 01000C5000A24B7

5331-01-042-2393 (2-341S595-50)

NIIN: 01-042-2393
In stock
NSN: 5331-01-042-2393
FSC Code: 5331
MPN: 2341S59550

5331-00-167-5160 (2-341V0747-75)

NIIN: 00-167-5160
In stock
NSN: 5331-00-167-5160
FSC Code: 5331
MPN: 2341V074775

5331-14-387-2573 (01000C0000A24B7)

NIIN: 14-387-2573
In stock
NSN: 5331-14-387-2573
FSC Code: 5331
MPN: 01000C0000A24B7

5331-00-470-9399 (2-342E515-80)

NIIN: 00-470-9399
In stock
NSN: 5331-00-470-9399
FSC Code: 5331
MPN: 2342E51580

5331-01-452-2501 (01-0016-21)

NIIN: 01-452-2501
In stock
NSN: 5331-01-452-2501
FSC Code: 5331
MPN: 01001621

5331-01-129-3158 (2-342L1223-60)

NIIN: 01-129-3158
In stock
NSN: 5331-01-129-3158
FSC Code: 5331
MPN: 2342L122360

5331-01-452-2399 (01-0016-11)

NIIN: 01-452-2399
In stock
NSN: 5331-01-452-2399
FSC Code: 5331
MPN: 01001611

5331-01-452-2499 (01-0016-08)

NIIN: 01-452-2499
In stock
NSN: 5331-01-452-2499
FSC Code: 5331
MPN: 01001608

5331-00-036-6792 (2-342L449-60)

NIIN: 00-036-6792
In stock
NSN: 5331-00-036-6792
FSC Code: 5331
MPN: 2342L44960

5331-01-452-3001 (01-0016-12)

NIIN: 01-452-3001
In stock
NSN: 5331-01-452-3001
FSC Code: 5331
MPN: 01001612

5331-00-121-2466 (2-342S604-70)

NIIN: 00-121-2466
In stock
NSN: 5331-00-121-2466
FSC Code: 5331
MPN: 2342S60470

5331-00-209-3455 (2-343S604-70)

NIIN: 00-209-3455
In stock
NSN: 5331-00-209-3455
FSC Code: 5331
MPN: 2343S60470

5331-00-458-1951 (2-344)

NIIN: 00-458-1951
In stock
NSN: 5331-00-458-1951
FSC Code: 5331
MPN: 2344

5331-00-753-2204 (2-343N103-70)

NIIN: 00-753-2204
In stock
NSN: 5331-00-753-2204
FSC Code: 5331
MPN: 2343N10370

5331-01-005-4061 (2-344)

NIIN: 01-005-4061
In stock
NSN: 5331-01-005-4061
FSC Code: 5331
MPN: 2344

5331-01-036-7046 (2-344)

NIIN: 01-036-7046
In stock
NSN: 5331-01-036-7046
FSC Code: 5331
MPN: 2344

5331-00-579-3165 (2-344)

NIIN: 00-579-3165
In stock
NSN: 5331-00-579-3165
FSC Code: 5331
MPN: 2344

5331-01-079-8154 (2-343N299-50)

NIIN: 01-079-8154
In stock
NSN: 5331-01-079-8154
FSC Code: 5331
MPN: 2343N29950

5331-00-508-7325 (2-34-47-071)

NIIN: 00-508-7325
In stock
NSN: 5331-00-508-7325
FSC Code: 5331
MPN: 23447071

5331-00-455-7027 (2-344E515-8)

NIIN: 00-455-7027
In stock
NSN: 5331-00-455-7027
FSC Code: 5331
MPN: 2344E5158

5331-01-063-3799 (2-344N299-50)

NIIN: 01-063-3799
In stock
NSN: 5331-01-063-3799
FSC Code: 5331
MPN: 2344N29950

5331-01-160-4326 (2-344N304-75)

NIIN: 01-160-4326
In stock
NSN: 5331-01-160-4326
FSC Code: 5331
MPN: 2344N30475

5331-01-129-3157 (2-344L1223-60)

NIIN: 01-129-3157
In stock
NSN: 5331-01-129-3157
FSC Code: 5331
MPN: 2344L122360

5331-01-092-3743 (2-344E692-75)

NIIN: 01-092-3743
In stock
NSN: 5331-01-092-3743
FSC Code: 5331
MPN: 2344E69275