3MM CS X 39.2MM ID BLACK FKM 75D

V3X39.2 is a black Viton® (FKM) 75 Shore A O-Ring built to an inside diameter of 39.2 mm (1.543 in), a cross section of 3 mm (0.118 in), and an outside diameter of 45.2 mm (1.78 in). In service, this o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Viton® (FKM) is specified here for long service life in hot, chemically aggressive environments and very low compression set at elevated temperature. Expect good resistance to aggressive chemicals, petroleum oils and fuels, and chlorinated solvents. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). It is not the right choice where ketones and esters or amines are present.

Maintenance and OEM teams specify it across oil and gas, chemical processing, and aerospace.

Order part number V3X39.2, sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.