-390 BROWN FKM 90D O-RING

Part number VB90390 is an AS568-390 brown Viton® (FKM) 90 Shore A O-Ring measuring an inside diameter of 20.953 in (532.21 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 21.373 in (542.87 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

As a material, Viton® (FKM) offers long service life in hot, chemically aggressive environments and the industry benchmark where nitrile reaches its thermal limit. This material stands up to aggressive chemicals, chlorinated solvents, and engine and transmission fluids. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C).

Typical settings include semiconductor equipment, high-temperature process equipment, and aerospace.

Order part number VB90390, sold individually. Nominal inside diameter is listed as 21 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.