4MM CS X 155MM ID BLACK FKM 75D

This o-ring is supplied in black Viton® (FKM) 75 Shore A built to an inside diameter of 155 mm (6.102 in), a cross section of 4 mm (0.157 in), and an outside diameter of 163 mm (6.42 in), catalogued under part number V4X155. It remains the most cost-effective sealing element available for pressurized assemblies.

It resists engine and transmission fluids, petroleum oils and fuels, and aromatic hydrocarbons. That behavior comes from the compound itself: Viton® (FKM) is valued for the industry benchmark where nitrile reaches its thermal limit and outstanding high-temperature capability. 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.

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

Stocked as V4X155 and sold individually. Unit weight is approximately 11.566 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.