8-262 BLACK FKM 90D BACK-UP RING

Part number VBU90262 is an AS568-262 black Viton® (FKM) 90 Shore A Back-Up Ring supplied with an inside diameter of 6.984 in (177.39 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 7.262 in (184.45 mm). A back-up ring bridges the extrusion gap so the primary seal holds its shape under load.

Viton® (FKM) is specified here for outstanding high-temperature capability, excellent resistance to compression set and permeation. The material holds up against aggressive chemicals, aromatic hydrocarbons, and engine and transmission fluids. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). Verify compatibility before use with amines or hot water and steam.

It sees regular use in automotive fuel systems, chemical processing, and high-temperature process equipment.

Stocked as VBU90262 and sold individually. Unit weight is approximately 3.414 g and nominal inside diameter is listed as 7 inch. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.