3.5MM CS X 43.7MM ID BLACK FKM 75D

Ordered as V3.5X43.7, this is a black Viton® (FKM) 75 Shore A O-Ring with an inside diameter of 43.7 mm (1.72 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 50.7 mm (2 in). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load. This item is further identified as Metric O-RING, JIS P44.

As a material, Viton® (FKM) is valued for long service life in hot, chemically aggressive environments and the industry benchmark where nitrile reaches its thermal limit. The compound resists chlorinated solvents, aromatic hydrocarbons, and engine and transmission fluids. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). It should not be specified for service in low-molecular-weight organic acids or amines.

It sees regular use in aerospace, high-temperature process equipment, and semiconductor equipment.

Reference part number V3.5X43.7 when ordering; the item is sold individually. Unit weight is approximately 2.6471 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.