1.5MM CS X 78MM ID BLACK FKM 75D

APG stocks the V1.5X78, a black Viton® (FKM) 75 Shore A O-Ring measuring an inside diameter of 78 mm (3.071 in), a cross section of 1.5 mm (0.059 in), and an outside diameter of 81 mm (3.19 in). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Viton® (FKM) offers very low compression set at elevated temperature and the industry benchmark where nitrile reaches its thermal limit. This material stands up to aggressive chemicals, engine and transmission fluids, and petroleum oils and fuels. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C).

Maintenance and OEM teams specify it across semiconductor equipment, chemical processing, and aerospace.

Reference part number V1.5X78 when ordering; the item is sold individually. Unit weight is approximately 0.8392 g. Check the compound against your process media, pressure and temperature before committing to a design.