*568-026 BLACK HNBR HSN70 O-Ring

The HSN70026 is an AS568-026 black HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring built to an inside diameter of 1.239 in (31.47 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 1.379 in (35.03 mm). This o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, HNBR (Hydrogenated Nitrile) delivers long service life in refrigerant and oilfield duty, excellent abrasion and tear strength. The compound resists modern refrigerants, heat and oxidation, and ozone and weathering. Published continuous service range is -40°F (-40°C) to 325°F (162.8°C). It is not the right choice where chlorinated hydrocarbons or esters are present.

Typical settings include heavy-duty powertrain, commercial refrigeration, and engine timing systems.

This item is sold individually under part number HSN70026. Unit weight is approximately 0.3112 g and nominal inside diameter is listed as 1 1/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.