-431 BROWN FKM 90D O-RING

Ordered as VB90431, this is an AS568-431 brown Viton® (FKM) 90 Shore A O-Ring measuring an inside diameter of 5.225 in (132.72 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 5.775 in (146.69 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Viton® (FKM) is specified here for industry benchmark where nitrile reaches its thermal limit, excellent resistance to compression set and permeation. The compound resists aggressive chemicals, petroleum oils and fuels, and engine and transmission fluids. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). It should not be specified for service in hot water and steam or ketones and esters.

It sees regular use in automotive fuel systems, semiconductor equipment, and high-temperature process equipment.

Reference part number VB90431 when ordering; the item is sold individually. Unit weight is approximately 36.764 g and nominal inside diameter is listed as 5 1/4 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.