-347 BLACK FKM 75D O-RING

Ordered as V75347, this is an AS568-347 black Viton® (FKM) 75 Shore A O-Ring supplied with an inside diameter of 4.225 in (107.32 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.645 in (117.98 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, Viton® (FKM) offers outstanding high-temperature capability, excellent resistance to compression set and permeation. The material holds up against many acids, aromatic hydrocarbons, and engine and transmission fluids. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). It should not be specified for service in low-molecular-weight organic acids or hot water and steam.

You will find this material specified across aerospace, high-temperature process equipment, and semiconductor equipment.

Reference part number V75347 when ordering; the item is sold individually. Nominal inside diameter is listed as 4 1/4 inch. Check the compound against your process media, pressure and temperature before committing to a design.