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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.

5331-01-300-2943 (223404-22)

NIIN: 01-300-2943
In stock
NSN: 5331-01-300-2943
FSC Code: 5331
MPN: 22340422

5331-01-302-9339 (223406-24)

NIIN: 01-302-9339
In stock
NSN: 5331-01-302-9339
FSC Code: 5331
MPN: 22340624

5331-01-235-2713 (223406-16)

NIIN: 01-235-2713
In stock
NSN: 5331-01-235-2713
FSC Code: 5331
MPN: 22340616

5331-01-320-3967 (223404-82)

NIIN: 01-320-3967
In stock
NSN: 5331-01-320-3967
FSC Code: 5331
MPN: 22340482

5331-01-183-7051 (223406-05)

NIIN: 01-183-7051
In stock
NSN: 5331-01-183-7051
FSC Code: 5331
MPN: 22340605

5331-01-235-2710 (223406-03)

NIIN: 01-235-2710
In stock
NSN: 5331-01-235-2710
FSC Code: 5331
MPN: 22340603

5331-01-138-3133 (223406-30)

NIIN: 01-138-3133
In stock
NSN: 5331-01-138-3133
FSC Code: 5331
MPN: 22340630

5331-01-320-3968 (223406-29)

NIIN: 01-320-3968
In stock
NSN: 5331-01-320-3968
FSC Code: 5331
MPN: 22340629

5331-01-277-8067 (223406-08)

NIIN: 01-277-8067
In stock
NSN: 5331-01-277-8067
FSC Code: 5331
MPN: 22340608

5331-01-138-2491 (223406-33)

NIIN: 01-138-2491
In stock
NSN: 5331-01-138-2491
FSC Code: 5331
MPN: 22340633

5331-01-302-9337 (223406-28)

NIIN: 01-302-9337
In stock
NSN: 5331-01-302-9337
FSC Code: 5331
MPN: 22340628

5331-01-320-3969 (223406-25)

NIIN: 01-320-3969
In stock
NSN: 5331-01-320-3969
FSC Code: 5331
MPN: 22340625

5331-01-320-3966 (223406-22)

NIIN: 01-320-3966
In stock
NSN: 5331-01-320-3966
FSC Code: 5331
MPN: 22340622

5331-01-277-9912 (223406-31)

NIIN: 01-277-9912
In stock
NSN: 5331-01-277-9912
FSC Code: 5331
MPN: 22340631

5331-01-302-9340 (223406-36)

NIIN: 01-302-9340
In stock
NSN: 5331-01-302-9340
FSC Code: 5331
MPN: 22340636

5331-01-285-5918 (223406-40)

NIIN: 01-285-5918
In stock
NSN: 5331-01-285-5918
FSC Code: 5331
MPN: 22340640

5331-01-235-2714 (223406-46)

NIIN: 01-235-2714
In stock
NSN: 5331-01-235-2714
FSC Code: 5331
MPN: 22340646

5331-01-302-9341 (223406-38)

NIIN: 01-302-9341
In stock
NSN: 5331-01-302-9341
FSC Code: 5331
MPN: 22340638

5331-01-320-3441 (223408-03)

NIIN: 01-320-3441
In stock
NSN: 5331-01-320-3441
FSC Code: 5331
MPN: 22340803

5331-01-138-3131 (223408-08)

NIIN: 01-138-3131
In stock
NSN: 5331-01-138-3131
FSC Code: 5331
MPN: 22340808

5331-01-277-8068 (223412-21)

NIIN: 01-277-8068
In stock
NSN: 5331-01-277-8068
FSC Code: 5331
MPN: 22341221

5331-01-320-4925 (223412-38)

NIIN: 01-320-4925
In stock
NSN: 5331-01-320-4925
FSC Code: 5331
MPN: 22341238

5331-01-137-6894 (223408-6)

NIIN: 01-137-6894
In stock
NSN: 5331-01-137-6894
FSC Code: 5331
MPN: 2234086

5331-01-138-3132 (223412-04)

NIIN: 01-138-3132
In stock
NSN: 5331-01-138-3132
FSC Code: 5331
MPN: 22341204

5331-01-302-9338 (223412-02)

NIIN: 01-302-9338
In stock
NSN: 5331-01-302-9338
FSC Code: 5331
MPN: 22341202

5331-01-138-2489 (223412-47)

NIIN: 01-138-2489
In stock
NSN: 5331-01-138-2489
FSC Code: 5331
MPN: 22341247

5331-01-320-4924 (223412-49)

NIIN: 01-320-4924
In stock
NSN: 5331-01-320-4924
FSC Code: 5331
MPN: 22341249

5331-01-278-3795 (223410-8)

NIIN: 01-278-3795
In stock
NSN: 5331-01-278-3795
FSC Code: 5331
MPN: 2234108

5331-01-278-3796 (223412-34)

NIIN: 01-278-3796
In stock
NSN: 5331-01-278-3796
FSC Code: 5331
MPN: 22341234

5331-01-320-3965 (223412-54)

NIIN: 01-320-3965
In stock
NSN: 5331-01-320-3965
FSC Code: 5331
MPN: 22341254

5331-01-278-8511 (223412-56)

NIIN: 01-278-8511
In stock
NSN: 5331-01-278-8511
FSC Code: 5331
MPN: 22341256

5331-01-240-6004 (2-234C1124-70)

NIIN: 01-240-6004
In stock
NSN: 5331-01-240-6004
FSC Code: 5331
MPN: 2234C112470

5331-01-241-7547 (223412-52)

NIIN: 01-241-7547
In stock
NSN: 5331-01-241-7547
FSC Code: 5331
MPN: 22341252

5331-00-352-0329 (2-234C147-70)

NIIN: 00-352-0329
In stock
NSN: 5331-00-352-0329
FSC Code: 5331
MPN: 2234C14770

5331-00-420-4693 (2-234E515-8)

NIIN: 00-420-4693
In stock
NSN: 5331-00-420-4693
FSC Code: 5331
MPN: 2234E5158

5331-00-849-6720 (2-235)

NIIN: 00-849-6720
In stock
NSN: 5331-00-849-6720
FSC Code: 5331
MPN: 2235

5331-01-106-3475 (2-234L1223-60)

NIIN: 01-106-3475
In stock
NSN: 5331-01-106-3475
FSC Code: 5331
MPN: 2234L122360

5331-00-815-3508 (2-235)

NIIN: 00-815-3508
In stock
NSN: 5331-00-815-3508
FSC Code: 5331
MPN: 2235

5331-00-068-8495 (2-235)

NIIN: 00-068-8495
In stock
NSN: 5331-00-068-8495
FSC Code: 5331
MPN: 2235

5331-00-352-0333 (2-235C557-7)

NIIN: 00-352-0333
In stock
NSN: 5331-00-352-0333
FSC Code: 5331
MPN: 2235C5577

5331-00-250-1224 (2-235N180-70)

NIIN: 00-250-1224
In stock
NSN: 5331-00-250-1224
FSC Code: 5331
MPN: 2235N18070

5331-01-036-5566 (2-235E540-8)

NIIN: 01-036-5566
In stock
NSN: 5331-01-036-5566
FSC Code: 5331
MPN: 2235E5408

5331-01-059-1659 (2-236)

NIIN: 01-059-1659
In stock
NSN: 5331-01-059-1659
FSC Code: 5331
MPN: 2236

5331-00-825-1430 (2-236)

NIIN: 00-825-1430
In stock
NSN: 5331-00-825-1430
FSC Code: 5331
MPN: 2236

5331-00-451-9005 (2-236)

NIIN: 00-451-9005
In stock
NSN: 5331-00-451-9005
FSC Code: 5331
MPN: 2236

5331-01-296-4060 (2-235-N109-7)

NIIN: 01-296-4060
In stock
NSN: 5331-01-296-4060
FSC Code: 5331
MPN: 2235N1097

5331-00-827-0248 (2-236)

NIIN: 00-827-0248
In stock
NSN: 5331-00-827-0248
FSC Code: 5331
MPN: 2236

5331-00-111-3755 (2-235N398-7)

NIIN: 00-111-3755
In stock
NSN: 5331-00-111-3755
FSC Code: 5331
MPN: 2235N3987