-428 BLACK FKM 75D O-RING

APG stocks the V70428, an AS568-428 black Viton® (FKM) 75 Shore A O-Ring built to an inside diameter of 4.85 in (123.19 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 5.4 in (137.16 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

As a material, Viton® (FKM) is valued for outstanding high-temperature capability and long service life in hot, chemically aggressive environments. This material stands up to many acids, aggressive chemicals, and engine and transmission fluids. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). It is not the right choice where amines or ketones and esters are present.

It sees regular use in aerospace, high-temperature process equipment, and chemical processing.

Reference part number V70428 when ordering; the item is sold individually. Unit weight is approximately 28.533 g and nominal inside diameter is listed as 4 7/8 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.