-391 BROWN FKM 90D O-RING

The VB90391 is an AS568-391 brown Viton® (FKM) 90 Shore A O-Ring supplied with an inside diameter of 21.953 in (557.61 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 22.373 in (568.27 mm). This o-ring compresses into its gland to block fluid or gas migration across a joint.

Viton® (FKM) is valued for the industry benchmark where nitrile reaches its thermal limit and outstanding high-temperature capability. The compound resists chlorinated solvents, petroleum oils and fuels, and aromatic hydrocarbons. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service.

Common environments for this compound include oil and gas, chemical processing, and high-temperature process equipment.

VB90391 ships individually. Nominal inside diameter is listed as 22 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.