-157 BROWN FKM 90D O-RING

This o-ring is supplied in AS568-157 brown Viton® (FKM) 90 Shore A built to an inside diameter of 4.487 in (113.97 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 4.693 in (119.2 mm), catalogued under part number VB90157. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Viton® (FKM) is valued for excellent resistance to compression set and permeation, outstanding high-temperature capability. This material stands up to many acids, petroleum oils and fuels, and engine and transmission fluids. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service. Applications involving low-molecular-weight organic acids or hot water and steam call for a different compound.

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

Reference part number VB90157 when ordering; the item is sold individually. Unit weight is approximately 4.4478 g and nominal inside diameter is listed as 4 1/2 inch. Review your operating media and conditions against this specification before installation.