3.53MM CS X 42.86MM ID BLACK FKM 75D

Part number V3.53X42.86 is a black Viton® (FKM) 75 Shore A O-Ring with an inside diameter of 42.86 mm (1.687 in), a cross section of 3.53 mm (0.139 in), and an outside diameter of 49.92 mm (1.97 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

The material holds up against aggressive chemicals, many acids, and engine and transmission fluids. That behavior comes from the compound itself: Viton® (FKM) is valued for very low compression set at elevated temperature and outstanding high-temperature capability. 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 low-molecular-weight organic acids are present.

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

Reference part number V3.53X42.86 when ordering; the item is sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.