Skip to content
News Industries Part Directory Excess Inventory Management Solutions Sitemap

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.

5331-01-375-4307 (633B1461)

NIIN: 01-375-4307
In stock
NSN: 5331-01-375-4307
FSC Code: 5331
MPN: 633B1461

5331-01-375-4305 (633B1465)

NIIN: 01-375-4305
In stock
NSN: 5331-01-375-4305
FSC Code: 5331
MPN: 633B1465

5331-01-377-5367 (633B1816)

NIIN: 01-377-5367
In stock
NSN: 5331-01-377-5367
FSC Code: 5331
MPN: 633B1816

5331-01-377-2789 (633B1818)

NIIN: 01-377-2789
In stock
NSN: 5331-01-377-2789
FSC Code: 5331
MPN: 633B1818

5331-01-375-4297 (633B1467)

NIIN: 01-375-4297
In stock
NSN: 5331-01-375-4297
FSC Code: 5331
MPN: 633B1467

5331-01-377-5168 (633B1809)

NIIN: 01-377-5168
In stock
NSN: 5331-01-377-5168
FSC Code: 5331
MPN: 633B1809

5331-01-375-4308 (633B1428)

NIIN: 01-375-4308
In stock
NSN: 5331-01-375-4308
FSC Code: 5331
MPN: 633B1428

5331-01-381-0702 (633B1301)

NIIN: 01-381-0702
In stock
NSN: 5331-01-381-0702
FSC Code: 5331
MPN: 633B1301

5331-01-381-0742 (633B1191)

NIIN: 01-381-0742
In stock
NSN: 5331-01-381-0742
FSC Code: 5331
MPN: 633B1191

5331-01-375-4294 (633B1440)

NIIN: 01-375-4294
In stock
NSN: 5331-01-375-4294
FSC Code: 5331
MPN: 633B1440

5331-01-375-4292 (633B1441)

NIIN: 01-375-4292
In stock
NSN: 5331-01-375-4292
FSC Code: 5331
MPN: 633B1441

5331-01-375-4309 (633B1446)

NIIN: 01-375-4309
In stock
NSN: 5331-01-375-4309
FSC Code: 5331
MPN: 633B1446

5331-01-375-4304 (633B1148)

NIIN: 01-375-4304
In stock
NSN: 5331-01-375-4304
FSC Code: 5331
MPN: 633B1148

5331-01-375-4296 (633B1460)

NIIN: 01-375-4296
In stock
NSN: 5331-01-375-4296
FSC Code: 5331
MPN: 633B1460

5331-01-375-4299 (633B1237)

NIIN: 01-375-4299
In stock
NSN: 5331-01-375-4299
FSC Code: 5331
MPN: 633B1237

5331-01-461-8478 (633B1333)

NIIN: 01-461-8478
In stock
NSN: 5331-01-461-8478
FSC Code: 5331
MPN: 633B1333

5331-01-375-4300 (633B1335)

NIIN: 01-375-4300
In stock
NSN: 5331-01-375-4300
FSC Code: 5331
MPN: 633B1335

5331-01-375-4301 (633B1267)

NIIN: 01-375-4301
In stock
NSN: 5331-01-375-4301
FSC Code: 5331
MPN: 633B1267

5331-01-468-0544 (633B0241)

NIIN: 01-468-0544
In stock
NSN: 5331-01-468-0544
FSC Code: 5331
MPN: 633B0241

5331-01-283-3547 (C313016-46)

NIIN: 01-283-3547
In stock
NSN: 5331-01-283-3547
FSC Code: 5331
MPN: C31301646

5331-01-375-4302 (633B1402)

NIIN: 01-375-4302
In stock
NSN: 5331-01-375-4302
FSC Code: 5331
MPN: 633B1402

5331-01-524-4772 (633B1136)

NIIN: 01-524-4772
In stock
NSN: 5331-01-524-4772
FSC Code: 5331
MPN: 633B1136

5331-00-060-4684 (C312047-29)

NIIN: 00-060-4684
In stock
NSN: 5331-00-060-4684
FSC Code: 5331
MPN: C31204729

5331-01-524-4542 (633B0015)

NIIN: 01-524-4542
In stock
NSN: 5331-01-524-4542
FSC Code: 5331
MPN: 633B0015

5331-01-524-4555 (633B1004)

NIIN: 01-524-4555
In stock
NSN: 5331-01-524-4555
FSC Code: 5331
MPN: 633B1004

5331-01-375-4295 (633B1056)

NIIN: 01-375-4295
In stock
NSN: 5331-01-375-4295
FSC Code: 5331
MPN: 633B1056

5331-01-468-0546 (XSZUDG1135M)

NIIN: 01-468-0546
In stock
NSN: 5331-01-468-0546
FSC Code: 5331
MPN: XSZUDG1135M

5331-01-375-4303 (633B1030)

NIIN: 01-375-4303
In stock
NSN: 5331-01-375-4303
FSC Code: 5331
MPN: 633B1030

5331-00-910-6697 (C312047-25)

NIIN: 00-910-6697
In stock
NSN: 5331-00-910-6697
FSC Code: 5331
MPN: C31204725

5331-01-375-4298 (633B1005)

NIIN: 01-375-4298
In stock
NSN: 5331-01-375-4298
FSC Code: 5331
MPN: 633B1005

5331-01-524-4550 (633B0011)

NIIN: 01-524-4550
In stock
NSN: 5331-01-524-4550
FSC Code: 5331
MPN: 633B0011

5331-00-986-0737 (C3068E)

NIIN: 00-986-0737
In stock
NSN: 5331-00-986-0737
FSC Code: 5331
MPN: C3068E

5331-01-278-5034 (C2817-5802-01)

NIIN: 01-278-5034
In stock
NSN: 5331-01-278-5034
FSC Code: 5331
MPN: C2817580201

5331-01-511-9028 (6330121-2)

NIIN: 01-511-9028
In stock
NSN: 5331-01-511-9028
FSC Code: 5331
MPN: 63301212

5331-01-511-9026 (6330121-1)

NIIN: 01-511-9026
In stock
NSN: 5331-01-511-9026
FSC Code: 5331
MPN: 63301211

5331-01-135-9417 (C-2715)

NIIN: 01-135-9417
In stock
NSN: 5331-01-135-9417
FSC Code: 5331
MPN: C2715

5331-01-295-2949 (C2712)

NIIN: 01-295-2949
In stock
NSN: 5331-01-295-2949
FSC Code: 5331
MPN: C2712

5331-01-116-8876 (C-25-67202)

NIIN: 01-116-8876
In stock
NSN: 5331-01-116-8876
FSC Code: 5331
MPN: C2567202

5331-01-523-7777 (632104-00)

NIIN: 01-523-7777
In stock
NSN: 5331-01-523-7777
FSC Code: 5331
MPN: 63210400

5331-01-523-7778 (632112-00)

NIIN: 01-523-7778
In stock
NSN: 5331-01-523-7778
FSC Code: 5331
MPN: 63211200

5331-01-259-9308 (C-255-03)

NIIN: 01-259-9308
In stock
NSN: 5331-01-259-9308
FSC Code: 5331
MPN: C25503

5331-01-523-7806 (632006-15)

NIIN: 01-523-7806
In stock
NSN: 5331-01-523-7806
FSC Code: 5331
MPN: 63200615

5331-01-523-7807 (632006-17)

NIIN: 01-523-7807
In stock
NSN: 5331-01-523-7807
FSC Code: 5331
MPN: 63200617

5331-01-240-8820 (C-25-35480)

NIIN: 01-240-8820
In stock
NSN: 5331-01-240-8820
FSC Code: 5331
MPN: C2535480

5331-00-557-8313 (C25-35126)

NIIN: 00-557-8313
In stock
NSN: 5331-00-557-8313
FSC Code: 5331
MPN: C2535126

5331-01-235-2064 (C-25-33465)

NIIN: 01-235-2064
In stock
NSN: 5331-01-235-2064
FSC Code: 5331
MPN: C2533465

5331-01-122-0333 (C-25-23145)

NIIN: 01-122-0333
In stock
NSN: 5331-01-122-0333
FSC Code: 5331
MPN: C2523145

5331-01-228-4108 (C-25-20195)

NIIN: 01-228-4108
In stock
NSN: 5331-01-228-4108
FSC Code: 5331
MPN: C2520195