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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.

5331-00-494-2079 (CW2300C562)

NIIN: 00-494-2079
In stock
NSN: 5331-00-494-2079
FSC Code: 5331
MPN: CW2300C562

5331-01-178-1261 (CW2300CG)

NIIN: 01-178-1261
In stock
NSN: 5331-01-178-1261
FSC Code: 5331
MPN: CW2300CG

5331-01-052-1805 (CW-2300ALPC621)

NIIN: 01-052-1805
In stock
NSN: 5331-01-052-1805
FSC Code: 5331
MPN: CW2300ALPC621

5331-01-353-2068 (CW-2300CW)

NIIN: 01-353-2068
In stock
NSN: 5331-01-353-2068
FSC Code: 5331
MPN: CW2300CW

5331-22-269-1820 (6-866AC-B)

NIIN: 22-269-1820
In stock
NSN: 5331-22-269-1820
FSC Code: 5331
MPN: 6866ACB

5331-22-269-1819 (6-866AC-B)

NIIN: 22-269-1819
In stock
NSN: 5331-22-269-1819
FSC Code: 5331
MPN: 6866ACB

5331-00-058-1449 (CVC4233-3)

NIIN: 00-058-1449
In stock
NSN: 5331-00-058-1449
FSC Code: 5331
MPN: CVC42333

5331-00-448-6687 (CVC4233-5)

NIIN: 00-448-6687
In stock
NSN: 5331-00-448-6687
FSC Code: 5331
MPN: CVC42335

5331-00-584-1821 (CVC4232-6)

NIIN: 00-584-1821
In stock
NSN: 5331-00-584-1821
FSC Code: 5331
MPN: CVC42326

5331-01-115-8731 (CVC4233-2)

NIIN: 01-115-8731
In stock
NSN: 5331-01-115-8731
FSC Code: 5331
MPN: CVC42332

5331-00-689-3958 (CVC4233-10)

NIIN: 00-689-3958
In stock
NSN: 5331-00-689-3958
FSC Code: 5331
MPN: CVC423310

5331-00-607-8124 (CVC4232-8)

NIIN: 00-607-8124
In stock
NSN: 5331-00-607-8124
FSC Code: 5331
MPN: CVC42328

5331-00-607-8123 (CVC4232-16)

NIIN: 00-607-8123
In stock
NSN: 5331-00-607-8123
FSC Code: 5331
MPN: CVC423216

5331-00-136-2873 (CVC4232-2)

NIIN: 00-136-2873
In stock
NSN: 5331-00-136-2873
FSC Code: 5331
MPN: CVC42322

5331-00-584-1824 (CVC4232-12)

NIIN: 00-584-1824
In stock
NSN: 5331-00-584-1824
FSC Code: 5331
MPN: CVC423212

5331-00-052-1887 (CVC4222-134)

NIIN: 00-052-1887
In stock
NSN: 5331-00-052-1887
FSC Code: 5331
MPN: CVC4222134

5331-00-884-0176 (CVC4232-10)

NIIN: 00-884-0176
In stock
NSN: 5331-00-884-0176
FSC Code: 5331
MPN: CVC423210

5331-01-211-9689 (CVC4225-152)

NIIN: 01-211-9689
In stock
NSN: 5331-01-211-9689
FSC Code: 5331
MPN: CVC4225152

5331-00-052-1885 (CVC4222-218)

NIIN: 00-052-1885
In stock
NSN: 5331-00-052-1885
FSC Code: 5331
MPN: CVC4222218

5331-01-205-3293 (CVC4225-241)

NIIN: 01-205-3293
In stock
NSN: 5331-01-205-3293
FSC Code: 5331
MPN: CVC4225241

5331-00-599-1262 (CVC4223-8)

NIIN: 00-599-1262
In stock
NSN: 5331-00-599-1262
FSC Code: 5331
MPN: CVC42238

5331-00-182-3160 (CVC4222-114)

NIIN: 00-182-3160
In stock
NSN: 5331-00-182-3160
FSC Code: 5331
MPN: CVC4222114

5331-00-279-9392 (CVC4218-329)

NIIN: 00-279-9392
In stock
NSN: 5331-00-279-9392
FSC Code: 5331
MPN: CVC4218329

5331-00-058-1446 (CVC4222-327)

NIIN: 00-058-1446
In stock
NSN: 5331-00-058-1446
FSC Code: 5331
MPN: CVC4222327

5331-00-991-6854 (CVC4222-329)

NIIN: 00-991-6854
In stock
NSN: 5331-00-991-6854
FSC Code: 5331
MPN: CVC4222329

5331-00-599-6708 (CVC4218-337)

NIIN: 00-599-6708
In stock
NSN: 5331-00-599-6708
FSC Code: 5331
MPN: CVC4218337

5331-00-191-3939 (CVC4222-210)

NIIN: 00-191-3939
In stock
NSN: 5331-00-191-3939
FSC Code: 5331
MPN: CVC4222210

5331-00-599-6706 (CVC4218-325)

NIIN: 00-599-6706
In stock
NSN: 5331-00-599-6706
FSC Code: 5331
MPN: CVC4218325

5331-01-449-8446 (706WA38LDNV-3)

NIIN: 01-449-8446
In stock
NSN: 5331-01-449-8446
FSC Code: 5331
MPN: 706WA38LDNV3

5331-01-422-5836 (68548P0Q6)

NIIN: 01-422-5836
In stock
NSN: 5331-01-422-5836
FSC Code: 5331
MPN: 68548P0Q6

5331-01-456-8123 (6851501-139)

NIIN: 01-456-8123
In stock
NSN: 5331-01-456-8123
FSC Code: 5331
MPN: 6851501139

5331-00-220-2562 (CU32058-31)

NIIN: 00-220-2562
In stock
NSN: 5331-00-220-2562
FSC Code: 5331
MPN: CU3205831

5331-01-464-1114 (68508P0Q1)

NIIN: 01-464-1114
In stock
NSN: 5331-01-464-1114
FSC Code: 5331
MPN: 68508P0Q1

5331-01-387-8845 (6843333-158)

NIIN: 01-387-8845
In stock
NSN: 5331-01-387-8845
FSC Code: 5331
MPN: 6843333158

5331-01-380-7538 (6842-002)

NIIN: 01-380-7538
In stock
NSN: 5331-01-380-7538
FSC Code: 5331
MPN: 6842002

5331-01-082-2608 (CT336A16)

NIIN: 01-082-2608
In stock
NSN: 5331-01-082-2608
FSC Code: 5331
MPN: CT336A16

5331-01-071-9359 (CT336A3)

NIIN: 01-071-9359
In stock
NSN: 5331-01-071-9359
FSC Code: 5331
MPN: CT336A3

5331-01-076-0202 (CT336-3)

NIIN: 01-076-0202
In stock
NSN: 5331-01-076-0202
FSC Code: 5331
MPN: CT3363

5331-01-076-1313 (CT336-12)

NIIN: 01-076-1313
In stock
NSN: 5331-01-076-1313
FSC Code: 5331
MPN: CT33612

5331-01-103-5751 (CST-121-2)

NIIN: 01-103-5751
In stock
NSN: 5331-01-103-5751
FSC Code: 5331
MPN: CST1212

5331-01-103-5750 (CST-121-1)

NIIN: 01-103-5750
In stock
NSN: 5331-01-103-5750
FSC Code: 5331
MPN: CST1211

5331-01-145-7559 (CSS000652)

NIIN: 01-145-7559
In stock
NSN: 5331-01-145-7559
FSC Code: 5331
MPN: CSS000652

5331-01-381-2263 (6831-001)

NIIN: 01-381-2263
In stock
NSN: 5331-01-381-2263
FSC Code: 5331
MPN: 6831001

5331-01-447-0792 (6831842-015)

NIIN: 01-447-0792
In stock
NSN: 5331-01-447-0792
FSC Code: 5331
MPN: 6831842015

5331-00-338-4668 (CSA337-2-39)

NIIN: 00-338-4668
In stock
NSN: 5331-00-338-4668
FSC Code: 5331
MPN: CSA337239

5331-00-441-9876 (CSA337-2-25)

NIIN: 00-441-9876
In stock
NSN: 5331-00-441-9876
FSC Code: 5331
MPN: CSA337225

5331-00-005-0880 (CSA337-2-33)

NIIN: 00-005-0880
In stock
NSN: 5331-00-005-0880
FSC Code: 5331
MPN: CSA337233

5331-00-627-9354 (CSA337-2-62)

NIIN: 00-627-9354
In stock
NSN: 5331-00-627-9354
FSC Code: 5331
MPN: CSA337262