1MM CS X 20.5MM ID BLACK BUNA 70D

Part number H1X20.5 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 20.5 mm (0.807 in), a cross section of 1 mm (0.039 in), and an outside diameter of 22.5 mm (0.89 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, Buna-N (Nitrile) is valued for the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. It resists petroleum-based oils, many alcohols, and water. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Exposure to ozone and direct sunlight or strong acids will shorten service life.

Common environments for this compound include automotive, fluid power, and construction equipment.

This item is sold individually under part number H1X20.5. Application requirements vary, so validate compatibility with your process conditions prior to installation.