4MM CS X 78MM ID BLACK FKM 75D

This o-ring is supplied in black Viton® (FKM) 75 Shore A measuring an inside diameter of 78 mm (3.071 in), a cross section of 4 mm (0.157 in), and an outside diameter of 86 mm (3.39 in), catalogued under part number V4X78. It provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Viton® (FKM) is valued for excellent resistance to compression set and permeation, very low compression set at elevated temperature. This material stands up to many acids, aromatic hydrocarbons, and chlorinated solvents. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). It is not the right choice where amines or hot water and steam are present.

It sees regular use in chemical processing, automotive fuel systems, and aerospace.

Reference part number V4X78 when ordering; the item is sold individually. Unit weight is approximately 6.028 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.