-239 BROWN FKM 90D O-RING

This o-ring is supplied in AS568-239 brown Viton® (FKM) 90 Shore A with an inside diameter of 3.609 in (91.67 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.887 in (98.73 mm), catalogued under part number VB90239. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Viton® (FKM) is widely chosen for excellent resistance to compression set and permeation, long service life in hot, chemically aggressive environments. Expect good resistance to engine and transmission fluids, many acids, and aromatic hydrocarbons. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). Exposure to ketones and esters or amines will shorten service life.

Typical settings include aerospace, high-temperature process equipment, and semiconductor equipment.

Reference part number VB90239 when ordering; the item is sold individually. Unit weight is approximately 6.5927 g and nominal inside diameter is listed as 3 5/8 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.