3MM CS X 108MM ID BLACK FKM 75D

V3X108 is a black Viton® (FKM) 75 Shore A O-Ring supplied with an inside diameter of 108 mm (4.252 in), a cross section of 3 mm (0.118 in), and an outside diameter of 114 mm (4.49 in). In service, this o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

It resists engine and transmission fluids, chlorinated solvents, and aromatic hydrocarbons. That behavior comes from the compound itself: Viton® (FKM) is widely chosen for very low compression set at elevated temperature, excellent resistance to compression set and permeation. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). Verify compatibility before use with ketones and esters or amines.

Maintenance and OEM teams specify it across aerospace, automotive fuel systems, and oil and gas.

Reference part number V3X108 when ordering; the item is sold individually. Unit weight is approximately 4.5306 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.