-239 BLACK FKM 75D O-RING

This o-ring is supplied in AS568-239 black Viton® (FKM) 75 Shore A with an inside diameter of 3.609 in (91.67 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.887 in (98.73 mm), catalogued under part number V70239. It creates a positive seal at flange, piston and rod interfaces without added hardware.

The compound resists engine and transmission fluids, chlorinated solvents, and petroleum oils and fuels. Viton® (FKM) delivers very low compression set at elevated temperature, excellent resistance to compression set and permeation. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). Exposure to ketones and esters or low-molecular-weight organic acids will shorten service life.

Maintenance and OEM teams specify it across oil and gas, semiconductor equipment, and high-temperature process equipment.

Reference part number V70239 when ordering; the item is sold individually. Unit weight is approximately 5.4053 g and nominal inside diameter is listed as 3 5/8 inch. Check the compound against your process media, pressure and temperature before committing to a design.