-443 BLACK FKM 90D O-RING

The V90443 is an AS568-443 black Viton® (FKM) 90 Shore A O-Ring with an inside diameter of 7.475 in (189.87 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 8.025 in (203.84 mm). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

This material stands up to petroleum oils and fuels, chlorinated solvents, and aromatic hydrocarbons. Viton® (FKM) is known for long service life in hot, chemically aggressive environments and the industry benchmark where nitrile reaches its thermal limit. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). It should not be specified for service in ketones and esters or amines.

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

Reference part number V90443 when ordering; the item is sold individually. Unit weight is approximately 43.7 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. For a size or compound outside the standard catalog, APG can quote from a print or sample.