8-141 BLACK FKM 90D BACK-UP RING

Part number VBU90141 is an AS568-141 black Viton® (FKM) 90 Shore A Back-Up Ring measuring an inside diameter of 2.3 in (58.42 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.506 in (63.65 mm). A back-up ring extends o-ring service life by supporting the seal against extrusion under high pressure.

The compound resists aromatic hydrocarbons, aggressive chemicals, and engine and transmission fluids. That behavior comes from the compound itself: Viton® (FKM) offers excellent resistance to compression set and permeation, long service life in hot, chemically aggressive environments. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). Verify compatibility before use with hot water and steam or amines.

It sees regular use in semiconductor equipment, oil and gas, and chemical processing.

VBU90141 ships individually. Unit weight is approximately 0.8996 g and nominal inside diameter is listed as 2 5/16 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.