-387 BROWN FKM 75D O-RING

Ordered as VB75387, this is an AS568-387 brown Viton® (FKM) 75 Shore A O-Ring built to an inside diameter of 17.955 in (456.06 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 18.375 in (466.73 mm). The 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 outstanding high-temperature capability. This material stands up to aromatic hydrocarbons, chlorinated solvents, and aggressive chemicals. 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.

Maintenance and OEM teams specify it across oil and gas, high-temperature process equipment, and semiconductor equipment.

Reference part number VB75387 when ordering; the item is sold individually. Unit weight is approximately 65.695 g and nominal inside diameter is listed as 18 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.