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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.

5331-01-396-8070 (11200240-1)

NIIN: 01-396-8070
In stock
NSN: 5331-01-396-8070
FSC Code: 5331
MPN: 112002401

5331-01-528-5081 (112.07.024.01)

NIIN: 01-528-5081
In stock
NSN: 5331-01-528-5081
FSC Code: 5331
MPN: 1120702401

5331-01-440-7725 (111F-6-3IN)

NIIN: 01-440-7725
In stock
NSN: 5331-01-440-7725
FSC Code: 5331
MPN: 111F63IN

5331-01-438-0343 (111F)

NIIN: 01-438-0343
In stock
NSN: 5331-01-438-0343
FSC Code: 5331
MPN: 111F

5331-01-464-1400 (11199L025)

NIIN: 01-464-1400
In stock
NSN: 5331-01-464-1400
FSC Code: 5331
MPN: 11199L025

5331-00-574-0650 (336D337PC26)

NIIN: 00-574-0650
In stock
NSN: 5331-00-574-0650
FSC Code: 5331
MPN: 336D337PC26

5331-01-117-3238 (336-8307)

NIIN: 01-117-3238
In stock
NSN: 5331-01-117-3238
FSC Code: 5331
MPN: 3368307

5331-01-474-2260 (111-7052)

NIIN: 01-474-2260
In stock
NSN: 5331-01-474-2260
FSC Code: 5331
MPN: 1117052

5331-01-331-1291 (336-190-225(10PK))

NIIN: 01-331-1291
In stock
NSN: 5331-01-331-1291
FSC Code: 5331
MPN: 33619022510PK

5331-01-331-1290 (336-190-222(5PK))

NIIN: 01-331-1290
In stock
NSN: 5331-01-331-1290
FSC Code: 5331
MPN: 3361902225PK

5331-01-331-7231 (336-190-228(10PK))

NIIN: 01-331-7231
In stock
NSN: 5331-01-331-7231
FSC Code: 5331
MPN: 33619022810PK

5331-01-332-3269 (336-190-224(5PK))

NIIN: 01-332-3269
In stock
NSN: 5331-01-332-3269
FSC Code: 5331
MPN: 3361902245PK

5331-01-337-9145 (3-359-8-08-120-03)

NIIN: 01-337-9145
In stock
NSN: 5331-01-337-9145
FSC Code: 5331
MPN: 335980812003

5331-01-179-1240 (3-359-8-03-107-03)

NIIN: 01-179-1240
In stock
NSN: 5331-01-179-1240
FSC Code: 5331
MPN: 335980310703

5331-01-091-8465 (3-359-8-05-107-02)

NIIN: 01-091-8465
In stock
NSN: 5331-01-091-8465
FSC Code: 5331
MPN: 335980510702

5331-01-116-1135 (3-359-8-04-207-03)

NIIN: 01-116-1135
In stock
NSN: 5331-01-116-1135
FSC Code: 5331
MPN: 335980420703

5331-01-330-9625 (3-359-8-00-904-08)

NIIN: 01-330-9625
In stock
NSN: 5331-01-330-9625
FSC Code: 5331
MPN: 335980090408

5331-01-273-9928 (3-359-8-00-901-31)

NIIN: 01-273-9928
In stock
NSN: 5331-01-273-9928
FSC Code: 5331
MPN: 335980090131

5331-01-114-7907 (3358-31)

NIIN: 01-114-7907
In stock
NSN: 5331-01-114-7907
FSC Code: 5331
MPN: 335831

5331-01-374-5249 (11142L001)

NIIN: 01-374-5249
In stock
NSN: 5331-01-374-5249
FSC Code: 5331
MPN: 11142L001

5331-01-330-8342 (3356AS709-1)

NIIN: 01-330-8342
In stock
NSN: 5331-01-330-8342
FSC Code: 5331
MPN: 3356AS7091

5331-01-006-2128 (335-6317)

NIIN: 01-006-2128
In stock
NSN: 5331-01-006-2128
FSC Code: 5331
MPN: 3356317

5331-00-397-4514 (3-355-8-15-101-)

NIIN: 00-397-4514
In stock
NSN: 5331-00-397-4514
FSC Code: 5331
MPN: 3355815101

5331-00-599-2721 (3-355-8-72-100-)

NIIN: 00-599-2721
In stock
NSN: 5331-00-599-2721
FSC Code: 5331
MPN: 3355872100

5331-01-115-8110 (3-355-8-13-101-04)

NIIN: 01-115-8110
In stock
NSN: 5331-01-115-8110
FSC Code: 5331
MPN: 335581310104

5331-01-277-8001 (3-355-8-12-101-09)

NIIN: 01-277-8001
In stock
NSN: 5331-01-277-8001
FSC Code: 5331
MPN: 335581210109

5331-01-210-4813 (3-355-8-10-101-06)

NIIN: 01-210-4813
In stock
NSN: 5331-01-210-4813
FSC Code: 5331
MPN: 335581010106

5331-01-288-8976 (3-355-8-10-120-01)

NIIN: 01-288-8976
In stock
NSN: 5331-01-288-8976
FSC Code: 5331
MPN: 335581012001

5331-01-210-4811 (3-355-8-06-101-05)

NIIN: 01-210-4811
In stock
NSN: 5331-01-210-4811
FSC Code: 5331
MPN: 335580610105

5331-01-320-9296 (3-355-8-08-101-14)

NIIN: 01-320-9296
In stock
NSN: 5331-01-320-9296
FSC Code: 5331
MPN: 335580810114

5331-01-210-4812 (3-355-8-06-101-04)

NIIN: 01-210-4812
In stock
NSN: 5331-01-210-4812
FSC Code: 5331
MPN: 335580610104

5331-01-140-7196 (3-355-8-06-101-02)

NIIN: 01-140-7196
In stock
NSN: 5331-01-140-7196
FSC Code: 5331
MPN: 335580610102

5331-01-475-4562 (11-134-7446-70)

NIIN: 01-475-4562
In stock
NSN: 5331-01-475-4562
FSC Code: 5331
MPN: 11134744670

5331-00-868-1264 (3-355-8-07-101-)

NIIN: 00-868-1264
In stock
NSN: 5331-00-868-1264
FSC Code: 5331
MPN: 3355807101

5331-01-291-3582 (3-355-8-00-901-03)

NIIN: 01-291-3582
In stock
NSN: 5331-01-291-3582
FSC Code: 5331
MPN: 335580090103

5331-01-119-1916 (3-355-8-00-901-05)

NIIN: 01-119-1916
In stock
NSN: 5331-01-119-1916
FSC Code: 5331
MPN: 335580090105

5331-00-872-5144 (3-355-8-00-901-01)

NIIN: 00-872-5144
In stock
NSN: 5331-00-872-5144
FSC Code: 5331
MPN: 335580090101

5331-00-855-1286 (3-355-8-00-901-)

NIIN: 00-855-1286
In stock
NSN: 5331-00-855-1286
FSC Code: 5331
MPN: 3355800901

5331-01-514-8069 (1113154PC10)

NIIN: 01-514-8069
In stock
NSN: 5331-01-514-8069
FSC Code: 5331
MPN: 1113154PC10

5331-01-125-3518 (3350NBMA190SBUFPPSTBNV-4)

NIIN: 01-125-3518
In stock
NSN: 5331-01-125-3518
FSC Code: 5331
MPN: 3350NBMA190SBUFPPSTBNV4

5331-01-561-2791 (111157002-50)

NIIN: 01-561-2791
In stock
NSN: 5331-01-561-2791
FSC Code: 5331
MPN: 11115700250

5331-01-301-7765 (334NES12)

NIIN: 01-301-7765
In stock
NSN: 5331-01-301-7765
FSC Code: 5331
MPN: 334NES12

5331-01-324-2536 (334B006P30)

NIIN: 01-324-2536
In stock
NSN: 5331-01-324-2536
FSC Code: 5331
MPN: 334B006P30

5331-01-284-4674 (33-45Z-F)

NIIN: 01-284-4674
In stock
NSN: 5331-01-284-4674
FSC Code: 5331
MPN: 3345ZF

5331-01-289-1818 (33-45)

NIIN: 01-289-1818
In stock
NSN: 5331-01-289-1818
FSC Code: 5331
MPN: 3345

5331-01-289-1819 (33-45)

NIIN: 01-289-1819
In stock
NSN: 5331-01-289-1819
FSC Code: 5331
MPN: 3345

5331-01-349-0762 (11-106111)

NIIN: 01-349-0762
In stock
NSN: 5331-01-349-0762
FSC Code: 5331
MPN: 11106111

5331-01-528-5079 (111.07.005.01)

NIIN: 01-528-5079
In stock
NSN: 5331-01-528-5079
FSC Code: 5331
MPN: 1110700501