*HSN (HNBR) 80 568-263

HSN80263 is an AS568-263 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring built to an inside diameter of 7.234 in (183.74 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 7.512 in (190.8 mm). In service, this o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

As a material, HNBR (Hydrogenated Nitrile) is widely chosen for strong resistance to rapid gas decompression, long service life in refrigerant and oilfield duty. It resists heat and oxidation, ozone and weathering, and petroleum oils and fuels. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C). Verify compatibility before use with ketones or chlorinated hydrocarbons.

Maintenance and OEM teams specify it across engine timing systems, automotive air conditioning, and heavy-duty powertrain.

Order part number HSN80263, sold individually. Unit weight is approximately 7.3804 g and nominal inside diameter is listed as 7 1/4 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.