-422 BROWN FKM 75D O-RING

This o-ring is supplied in AS568-422 brown Viton® (FKM) 75 Shore A supplied with an inside diameter of 4.1 in (104.14 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 4.65 in (118.11 mm), catalogued under part number VB75422. It creates a positive seal at flange, piston and rod interfaces without added hardware.

It resists aromatic hydrocarbons, chlorinated solvents, and aggressive chemicals. That behavior comes from the compound itself: Viton® (FKM) is widely chosen for outstanding high-temperature capability and the industry benchmark where nitrile reaches its thermal limit. 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.

It sees regular use in oil and gas, chemical processing, and aerospace.

VB75422 ships individually. Nominal inside diameter is listed as 4 1/8 inch. Check the compound against your process media, pressure and temperature before committing to a design.