-423 BROWN FKM 75D O-RING

Part number VB75423 is an AS568-423 brown Viton® (FKM) 75 Shore A O-Ring built to an inside diameter of 4.225 in (107.32 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 4.775 in (121.29 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Viton® (FKM) is specified here for excellent resistance to compression set and permeation, long service life in hot, chemically aggressive environments. The compound resists engine and transmission fluids, aggressive chemicals, and chlorinated solvents. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). It is not the right choice where ketones and esters or hot water and steam are present.

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

Reference part number VB75423 when ordering; the item is sold individually. Nominal inside diameter is listed as 4 1/4 inch. Review your operating media and conditions against this specification before installation.