-250 BLACK FKM 75D O-RING

Ordered as V75250, this is an AS568-250 black Viton® (FKM) 75 Shore A O-Ring supplied with an inside diameter of 4.984 in (126.59 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.262 in (133.65 mm). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

As a material, Viton® (FKM) is known for long service life in hot, chemically aggressive environments and very low compression set at elevated temperature. Expect good resistance to aromatic hydrocarbons, many acids, and aggressive chemicals. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). Applications involving amines or ketones and esters call for a different compound.

You will find this material specified across aerospace, chemical processing, and semiconductor equipment.

Reference part number V75250 when ordering; the item is sold individually. Unit weight is approximately 7.4 g and nominal inside diameter is listed as 5 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.