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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.

5331-01-318-6756 (D-5611)

NIIN: 01-318-6756
In stock
NSN: 5331-01-318-6756
FSC Code: 5331
MPN: D5611

5331-00-870-0245 (D54611)

NIIN: 00-870-0245
In stock
NSN: 5331-00-870-0245
FSC Code: 5331
MPN: D54611

5331-01-550-6739 (6-964V0747-75)

NIIN: 01-550-6739
In stock
NSN: 5331-01-550-6739
FSC Code: 5331
MPN: 6964V074775

5331-01-328-4151 (D-512-6-3IN)

NIIN: 01-328-4151
In stock
NSN: 5331-01-328-4151
FSC Code: 5331
MPN: D51263IN

5331-01-257-4787 (D4ZZ7A248-A)

NIIN: 01-257-4787
In stock
NSN: 5331-01-257-4787
FSC Code: 5331
MPN: D4ZZ7A248A

5331-00-870-0224 (D49286)

NIIN: 00-870-0224
In stock
NSN: 5331-00-870-0224
FSC Code: 5331
MPN: D49286

5331-01-274-8077 (D49923)

NIIN: 01-274-8077
In stock
NSN: 5331-01-274-8077
FSC Code: 5331
MPN: D49923

5331-00-426-3714 (D49285)

NIIN: 00-426-3714
In stock
NSN: 5331-00-426-3714
FSC Code: 5331
MPN: D49285

5331-01-259-7479 (D-483463-868Y-1.50IN)

NIIN: 01-259-7479
In stock
NSN: 5331-01-259-7479
FSC Code: 5331
MPN: D483463868Y150IN

5331-01-324-3392 (D473814)

NIIN: 01-324-3392
In stock
NSN: 5331-01-324-3392
FSC Code: 5331
MPN: D473814

5331-01-130-6122 (D452SLEG6)

NIIN: 01-130-6122
In stock
NSN: 5331-01-130-6122
FSC Code: 5331
MPN: D452SLEG6

5331-01-274-9733 (D41750-8)

NIIN: 01-274-9733
In stock
NSN: 5331-01-274-9733
FSC Code: 5331
MPN: D417508

5331-01-274-9732 (D41750-27)

NIIN: 01-274-9732
In stock
NSN: 5331-01-274-9732
FSC Code: 5331
MPN: D4175027

5331-01-318-2280 (D-4007-33-915)

NIIN: 01-318-2280
In stock
NSN: 5331-01-318-2280
FSC Code: 5331
MPN: D400733915

5331-01-146-6054 (D-3908-11)

NIIN: 01-146-6054
In stock
NSN: 5331-01-146-6054
FSC Code: 5331
MPN: D390811

5331-01-277-2193 (D-39)

NIIN: 01-277-2193
In stock
NSN: 5331-01-277-2193
FSC Code: 5331
MPN: D39

5331-01-561-9216 (6954968/4-ITEM-4)

NIIN: 01-561-9216
In stock
NSN: 5331-01-561-9216
FSC Code: 5331
MPN: 69549684ITEM4

5331-01-561-9214 (6954968/4-ITEM-3)

NIIN: 01-561-9214
In stock
NSN: 5331-01-561-9214
FSC Code: 5331
MPN: 69549684ITEM3

5331-01-561-9215 (6954968/4-ITEM-14)

NIIN: 01-561-9215
In stock
NSN: 5331-01-561-9215
FSC Code: 5331
MPN: 69549684ITEM14

5331-01-398-9790 (695010250)

NIIN: 01-398-9790
In stock
NSN: 5331-01-398-9790
FSC Code: 5331
MPN: 695010250

5331-01-362-1393 (695-00143)

NIIN: 01-362-1393
In stock
NSN: 5331-01-362-1393
FSC Code: 5331
MPN: 69500143

5331-01-550-2940 (695-00114-0)

NIIN: 01-550-2940
In stock
NSN: 5331-01-550-2940
FSC Code: 5331
MPN: 695001140

5331-01-540-9936 (695-00016-0)

NIIN: 01-540-9936
In stock
NSN: 5331-01-540-9936
FSC Code: 5331
MPN: 695000160

5331-01-550-2908 (695-00119-0)

NIIN: 01-550-2908
In stock
NSN: 5331-01-550-2908
FSC Code: 5331
MPN: 695001190

5331-01-550-3798 (695-00118-0)

NIIN: 01-550-3798
In stock
NSN: 5331-01-550-3798
FSC Code: 5331
MPN: 695001180

5331-01-517-3416 (695-00906-0)

NIIN: 01-517-3416
In stock
NSN: 5331-01-517-3416
FSC Code: 5331
MPN: 695009060

5331-01-374-5918 (695-00114)

NIIN: 01-374-5918
In stock
NSN: 5331-01-374-5918
FSC Code: 5331
MPN: 69500114

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