-349 BLACK FKM 75D O-RING

V75349 is an AS568-349 black Viton® (FKM) 75 Shore A O-Ring with an inside diameter of 4.475 in (113.67 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.895 in (124.33 mm). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The material holds up against engine and transmission fluids, aggressive chemicals, and chlorinated solvents. That behavior comes from the compound itself: Viton® (FKM) is valued for outstanding high-temperature capability, excellent resistance to compression set and permeation. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C).

It sees regular use in oil and gas, chemical processing, and high-temperature process equipment.

This item is sold individually under part number V75349. Nominal inside diameter is listed as 4 1/2 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.