1.3MM CS X 20MM ID BLACK BUNA 70D

The H1.3X20 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 20 mm (0.787 in), a cross section of 1.3 mm (0.051 in), and an outside diameter of 22.6 mm (0.89 in). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

This material stands up to water, hydraulic fluids, and many alcohols. That behavior comes from the compound itself: Buna-N (Nitrile) is widely chosen for the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving strong acids or ketones call for a different compound.

It sees regular use in fluid power, construction equipment, and agricultural equipment.

Reference part number H1.3X20 when ordering; the item is sold individually. Check the compound against your process media, pressure and temperature before committing to a design.