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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.

5331-01-550-2906 (695-00127-0)

NIIN: 01-550-2906
In stock
NSN: 5331-01-550-2906
FSC Code: 5331
MPN: 695001270

5331-01-362-1394 (695-00112)

NIIN: 01-362-1394
In stock
NSN: 5331-01-362-1394
FSC Code: 5331
MPN: 69500112

5331-01-540-7877 (695-00009-0)

NIIN: 01-540-7877
In stock
NSN: 5331-01-540-7877
FSC Code: 5331
MPN: 695000090

5331-01-352-7741 (69494J211)

NIIN: 01-352-7741
In stock
NSN: 5331-01-352-7741
FSC Code: 5331
MPN: 69494J211

5331-01-458-7437 (69494S905)

NIIN: 01-458-7437
In stock
NSN: 5331-01-458-7437
FSC Code: 5331
MPN: 69494S905

5331-01-507-5616 (69494J251)

NIIN: 01-507-5616
In stock
NSN: 5331-01-507-5616
FSC Code: 5331
MPN: 69494J251

5331-01-474-6066 (69494J225)

NIIN: 01-474-6066
In stock
NSN: 5331-01-474-6066
FSC Code: 5331
MPN: 69494J225

5331-01-462-2778 (69494J229)

NIIN: 01-462-2778
In stock
NSN: 5331-01-462-2778
FSC Code: 5331
MPN: 69494J229

5331-01-474-6050 (69494J146)

NIIN: 01-474-6050
In stock
NSN: 5331-01-474-6050
FSC Code: 5331
MPN: 69494J146

5331-01-513-1941 (69494J221)

NIIN: 01-513-1941
In stock
NSN: 5331-01-513-1941
FSC Code: 5331
MPN: 69494J221

5331-01-474-6074 (69494J223)

NIIN: 01-474-6074
In stock
NSN: 5331-01-474-6074
FSC Code: 5331
MPN: 69494J223

5331-01-474-6078 (69494J231)

NIIN: 01-474-6078
In stock
NSN: 5331-01-474-6078
FSC Code: 5331
MPN: 69494J231

5331-01-353-2066 (69494G230)

NIIN: 01-353-2066
In stock
NSN: 5331-01-353-2066
FSC Code: 5331
MPN: 69494G230

5331-01-352-7740 (69494J116)

NIIN: 01-352-7740
In stock
NSN: 5331-01-352-7740
FSC Code: 5331
MPN: 69494J116

5331-01-513-9764 (69490D216)

NIIN: 01-513-9764
In stock
NSN: 5331-01-513-9764
FSC Code: 5331
MPN: 69490D216

5331-01-351-1224 (69483D070-3562)

NIIN: 01-351-1224
In stock
NSN: 5331-01-351-1224
FSC Code: 5331
MPN: 69483D0703562

5331-01-252-7151 (D320448)

NIIN: 01-252-7151
In stock
NSN: 5331-01-252-7151
FSC Code: 5331
MPN: D320448

5331-01-252-5102 (D320448)

NIIN: 01-252-5102
In stock
NSN: 5331-01-252-5102
FSC Code: 5331
MPN: D320448

5331-01-250-1384 (D319206)

NIIN: 01-250-1384
In stock
NSN: 5331-01-250-1384
FSC Code: 5331
MPN: D319206

5331-01-252-7152 (D320448)

NIIN: 01-252-7152
In stock
NSN: 5331-01-252-7152
FSC Code: 5331
MPN: D320448

5331-01-289-5457 (D3168-4MRV)

NIIN: 01-289-5457
In stock
NSN: 5331-01-289-5457
FSC Code: 5331
MPN: D31684MRV

5331-01-192-9262 (D31410)

NIIN: 01-192-9262
In stock
NSN: 5331-01-192-9262
FSC Code: 5331
MPN: D31410

5331-00-072-5958 (D312047-18)

NIIN: 00-072-5958
In stock
NSN: 5331-00-072-5958
FSC Code: 5331
MPN: D31204718

5331-00-072-5955 (D312047-12)

NIIN: 00-072-5955
In stock
NSN: 5331-00-072-5955
FSC Code: 5331
MPN: D31204712

5331-01-009-3982 (D312047-16)

NIIN: 01-009-3982
In stock
NSN: 5331-01-009-3982
FSC Code: 5331
MPN: D31204716

5331-01-549-2091 (69405K57)

NIIN: 01-549-2091
In stock
NSN: 5331-01-549-2091
FSC Code: 5331
MPN: 69405K57

5331-01-250-1385 (D305308)

NIIN: 01-250-1385
In stock
NSN: 5331-01-250-1385
FSC Code: 5331
MPN: D305308

5331-00-065-4972 (D30487PC6)

NIIN: 00-065-4972
In stock
NSN: 5331-00-065-4972
FSC Code: 5331
MPN: D30487PC6

5331-01-249-9552 (D305308)

NIIN: 01-249-9552
In stock
NSN: 5331-01-249-9552
FSC Code: 5331
MPN: D305308

5331-01-532-2566 (6936795-8)

NIIN: 01-532-2566
In stock
NSN: 5331-01-532-2566
FSC Code: 5331
MPN: 69367958

5331-01-394-5995 (MIL-G-22050GRADE3SIZEAS568-236)

NIIN: 01-394-5995
In stock
NSN: 5331-01-394-5995
FSC Code: 5331
MPN: MILG22050GRADE3SIZEAS568236

5331-01-532-2562 (6936795-6)

NIIN: 01-532-2562
In stock
NSN: 5331-01-532-2562
FSC Code: 5331
MPN: 69367956

5331-01-532-2572 (6936795-9)

NIIN: 01-532-2572
In stock
NSN: 5331-01-532-2572
FSC Code: 5331
MPN: 69367959

5331-01-567-4738 (6936795-1)

NIIN: 01-567-4738
In stock
NSN: 5331-01-567-4738
FSC Code: 5331
MPN: 69367951

5331-01-532-2574 (6936795-10)

NIIN: 01-532-2574
In stock
NSN: 5331-01-532-2574
FSC Code: 5331
MPN: 693679510

5331-01-124-1115 (D30061)

NIIN: 01-124-1115
In stock
NSN: 5331-01-124-1115
FSC Code: 5331
MPN: D30061

5331-01-326-0977 (D30074-7)

NIIN: 01-326-0977
In stock
NSN: 5331-01-326-0977
FSC Code: 5331
MPN: D300747

5331-01-066-3902 (D300531-2)

NIIN: 01-066-3902
In stock
NSN: 5331-01-066-3902
FSC Code: 5331
MPN: D3005312

5331-01-066-3903 (D300531-3)

NIIN: 01-066-3903
In stock
NSN: 5331-01-066-3903
FSC Code: 5331
MPN: D3005313

5331-01-105-7255 (D2NN-3R542-A)

NIIN: 01-105-7255
In stock
NSN: 5331-01-105-7255
FSC Code: 5331
MPN: D2NN3R542A

5331-00-213-0577 (D2-9778PC10)

NIIN: 00-213-0577
In stock
NSN: 5331-00-213-0577
FSC Code: 5331
MPN: D29778PC10

5331-01-408-9586 (69257-14)

NIIN: 01-408-9586
In stock
NSN: 5331-01-408-9586
FSC Code: 5331
MPN: 6925714

5331-01-223-5506 (D-2737)

NIIN: 01-223-5506
In stock
NSN: 5331-01-223-5506
FSC Code: 5331
MPN: D2737

5331-01-270-1759 (D25CD-4)

NIIN: 01-270-1759
In stock
NSN: 5331-01-270-1759
FSC Code: 5331
MPN: D25CD4

5331-01-268-6818 (D25CD-4)

NIIN: 01-268-6818
In stock
NSN: 5331-01-268-6818
FSC Code: 5331
MPN: D25CD4

5331-01-165-2309 (D2-550)

NIIN: 01-165-2309
In stock
NSN: 5331-01-165-2309
FSC Code: 5331
MPN: D2550

5331-01-239-3290 (D2557-S)

NIIN: 01-239-3290
In stock
NSN: 5331-01-239-3290
FSC Code: 5331
MPN: D2557S

5331-01-165-2308 (D2-549)

NIIN: 01-165-2308
In stock
NSN: 5331-01-165-2308
FSC Code: 5331
MPN: D2549