3MM CS X 78MM ID BLACK BUNA 70D

This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 78 mm (3.071 in), a cross section of 3 mm (0.118 in), and an outside diameter of 84 mm (3.31 in), catalogued under part number H3X78. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

As a material, Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. The material holds up against greases and lubricants, many alcohols, and propane and butane. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Exposure to strong acids or polar solvents will shorten service life.

You will find this material specified across agricultural equipment, fluid power, and hydraulic and pneumatic systems.

H3X78 ships individually. Unit weight is approximately 0.0022 g. Check the compound against your process media, pressure and temperature before committing to a design.