-470 BROWN FKM 90D O-RING

Part number VB90470 is an AS568-470 brown Viton® (FKM) 90 Shore A O-Ring measuring an inside diameter of 20.955 in (532.26 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 21.505 in (546.23 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

The material holds up against aromatic hydrocarbons, petroleum oils and fuels, and aggressive chemicals. That behavior comes from the compound itself: Viton® (FKM) is specified for excellent resistance to compression set and permeation, 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). Applications involving amines or ketones and esters call for a different compound.

Common environments for this compound include oil and gas, automotive fuel systems, and chemical processing.

Reference part number VB90470 when ordering; the item is sold individually. Nominal inside diameter is listed as 21 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.