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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.

5331-01-614-0368 (10-1850-501-X ITEM 45)

NIIN: 01-614-0368
In stock
NSN: 5331-01-614-0368
FSC Code: 5331
MPN: 101850501XITEM45

5331-01-613-9363 (O-3-1-6)

NIIN: 01-613-9363
In stock
NSN: 5331-01-613-9363
FSC Code: 5331
MPN: O316

5331-01-613-5506 (ESP SK-1)

NIIN: 01-613-5506
In stock
NSN: 5331-01-613-5506
FSC Code: 5331
MPN: ESPSK1

5331-01-613-5358 (R0122858)

NIIN: 01-613-5358
In stock
NSN: 5331-01-613-5358
FSC Code: 5331
MPN: R0122858

5331-01-613-3622 (25-0339)

NIIN: 01-613-3622
In stock
NSN: 5331-01-613-3622
FSC Code: 5331
MPN: 250339

5331-01-614-0732 (TCR131103008)

NIIN: 01-614-0732
In stock
NSN: 5331-01-614-0732
FSC Code: 5331
MPN: TCR131103008

5331-01-613-9772 (TCR131103026)

NIIN: 01-613-9772
In stock
NSN: 5331-01-613-9772
FSC Code: 5331
MPN: TCR131103026

5331-01-613-8294 (TE55718R)

NIIN: 01-613-8294
In stock
NSN: 5331-01-613-8294
FSC Code: 5331
MPN: TE55718R

5331-01-613-8176 (1532J51ITEM12)

NIIN: 01-613-8176
In stock
NSN: 5331-01-613-8176
FSC Code: 5331
MPN: 1532J51ITEM12

5331-01-613-7390 (MTWH003)

NIIN: 01-613-7390
In stock
NSN: 5331-01-613-7390
FSC Code: 5331
MPN: MTWH003

5331-01-613-6363 (A06689.126.269)

NIIN: 01-613-6363
In stock
NSN: 5331-01-613-6363
FSC Code: 5331
MPN: A06689126269

5331-01-613-5769 (1201T754)

NIIN: 01-613-5769
In stock
NSN: 5331-01-613-5769
FSC Code: 5331
MPN: 1201T754

5331-01-613-3017 (79K-14)

NIIN: 01-613-3017
In stock
NSN: 5331-01-613-3017
FSC Code: 5331
MPN: 79K14

5331-01-614-1646 (421051239-2)

NIIN: 01-614-1646
In stock
NSN: 5331-01-614-1646
FSC Code: 5331
MPN: 4210512392

5331-01-614-0382 (10-2298-1A-2 ITEM 16)

NIIN: 01-614-0382
In stock
NSN: 5331-01-614-0382
FSC Code: 5331
MPN: 1022981A2ITEM16

5331-01-613-9448 (OR030H)

NIIN: 01-613-9448
In stock
NSN: 5331-01-613-9448
FSC Code: 5331
MPN: OR030H

5331-01-613-7312 (TCR131101004)

NIIN: 01-613-7312
In stock
NSN: 5331-01-613-7312
FSC Code: 5331
MPN: TCR131101004

5331-01-613-7252 (OR125H)

NIIN: 01-613-7252
In stock
NSN: 5331-01-613-7252
FSC Code: 5331
MPN: OR125H

5331-01-613-4500 (90-2512)

NIIN: 01-613-4500
In stock
NSN: 5331-01-613-4500
FSC Code: 5331
MPN: 902512

5331-01-613-2976 (25-0052)

NIIN: 01-613-2976
In stock
NSN: 5331-01-613-2976
FSC Code: 5331
MPN: 250052

5331-01-613-2365 (20202 FIND NO. 30)

NIIN: 01-613-2365
In stock
NSN: 5331-01-613-2365
FSC Code: 5331
MPN: 20202FINDNO30

5331-01-614-1479 (OR119H)

NIIN: 01-614-1479
In stock
NSN: 5331-01-614-1479
FSC Code: 5331
MPN: OR119H

5331-01-614-1338 (OR049V)

NIIN: 01-614-1338
In stock
NSN: 5331-01-614-1338
FSC Code: 5331
MPN: OR049V

5331-01-614-0204 (1094-2034)

NIIN: 01-614-0204
In stock
NSN: 5331-01-614-0204
FSC Code: 5331
MPN: 10942034

5331-01-613-9366 (O-8-3-35)

NIIN: 01-613-9366
In stock
NSN: 5331-01-613-9366
FSC Code: 5331
MPN: O8335

5331-01-613-9367 (O-4-2-7)

NIIN: 01-613-9367
In stock
NSN: 5331-01-613-9367
FSC Code: 5331
MPN: O427

5331-01-613-9358 (O-1-2-12)

NIIN: 01-613-9358
In stock
NSN: 5331-01-613-9358
FSC Code: 5331
MPN: O1212

5331-01-613-8174 (20453 PC NO 13)

NIIN: 01-613-8174
In stock
NSN: 5331-01-613-8174
FSC Code: 5331
MPN: 20453PCNO13

5331-01-613-8061 (2-328E540-80)

NIIN: 01-613-8061
In stock
NSN: 5331-01-613-8061
FSC Code: 5331
MPN: 2328E54080

5331-01-613-7386 (MTWH020)

NIIN: 01-613-7386
In stock
NSN: 5331-01-613-7386
FSC Code: 5331
MPN: MTWH020

5331-01-613-6420 (112-1102)

NIIN: 01-613-6420
In stock
NSN: 5331-01-613-6420
FSC Code: 5331
MPN: 1121102

5331-01-613-5547 (R0122744)

NIIN: 01-613-5547
In stock
NSN: 5331-01-613-5547
FSC Code: 5331
MPN: R0122744

5331-01-613-4309 (04814-0631-0)

NIIN: 01-613-4309
In stock
NSN: 5331-01-613-4309
FSC Code: 5331
MPN: 0481406310

5331-01-613-4281 (25-0060)

NIIN: 01-613-4281
In stock
NSN: 5331-01-613-4281
FSC Code: 5331
MPN: 250060

5331-01-614-1659 (M14974)

NIIN: 01-614-1659
In stock
NSN: 5331-01-614-1659
FSC Code: 5331
MPN: M14974

5331-01-614-0603 (2-394E540-80)

NIIN: 01-614-0603
In stock
NSN: 5331-01-614-0603
FSC Code: 5331
MPN: 2394E54080

5331-01-613-9999 (W7N7NS0524)

NIIN: 01-613-9999
In stock
NSN: 5331-01-613-9999
FSC Code: 5331
MPN: W7N7NS0524

5331-01-613-8275 (A-A-59588CL2BGR70/AS568-212)

NIIN: 01-613-8275
In stock
NSN: 5331-01-613-8275
FSC Code: 5331
MPN: AA59588CL2BGR70AS568212

5331-01-613-3627 (25-0059)

NIIN: 01-613-3627
In stock
NSN: 5331-01-613-3627
FSC Code: 5331
MPN: 250059

5331-01-613-0203 (GM53066)

NIIN: 01-613-0203
In stock
NSN: 5331-01-613-0203
FSC Code: 5331
MPN: GM53066

5331-01-612-9755 (R500318)

NIIN: 01-612-9755
In stock
NSN: 5331-01-612-9755
FSC Code: 5331
MPN: R500318

5331-01-614-1225 (10-1850-501-X ITEM 44)

NIIN: 01-614-1225
In stock
NSN: 5331-01-614-1225
FSC Code: 5331
MPN: 101850501XITEM44

5331-01-613-7863 (OR129H)

NIIN: 01-613-7863
In stock
NSN: 5331-01-613-7863
FSC Code: 5331
MPN: OR129H

5331-01-613-7808 (OR038H)

NIIN: 01-613-7808
In stock
NSN: 5331-01-613-7808
FSC Code: 5331
MPN: OR038H

5331-01-613-6418 (200-6410)

NIIN: 01-613-6418
In stock
NSN: 5331-01-613-6418
FSC Code: 5331
MPN: 2006410

5331-01-613-4777 (41 15301-S)

NIIN: 01-613-4777
In stock
NSN: 5331-01-613-4777
FSC Code: 5331
MPN: 4115301S

5331-01-613-3630 (25-0014)

NIIN: 01-613-3630
In stock
NSN: 5331-01-613-3630
FSC Code: 5331
MPN: 250014

5331-01-613-2973 (25-0139)

NIIN: 01-613-2973
In stock
NSN: 5331-01-613-2973
FSC Code: 5331
MPN: 250139