3MM CS X 18MM ID BLACK BUNA 70D

Ordered as H3X18, this is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 18 mm (0.709 in), a cross section of 3 mm (0.118 in), and an outside diameter of 24 mm (0.94 in). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is specified here for most widely specified general-purpose sealing elastomer and economical choice for high-volume maintenance programs. The material holds up against hydraulic fluids, many alcohols, and propane and butane. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to strong acids or automotive brake fluid will shorten service life.

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

Order part number H3X18, sold individually. Unit weight is approximately 0.568 g. Check the compound against your process media, pressure and temperature before committing to a design.