HSN (HNBR) 80 568-365

Part number HSN80365 is an AS568-365 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring measuring an inside diameter of 6.975 in (177.17 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 7.395 in (187.83 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

This material stands up to modern refrigerants, heat and oxidation, and sour gas and amine inhibitors. That behavior comes from the compound itself: HNBR (Hydrogenated Nitrile) is widely chosen for excellent abrasion and tear strength, strong resistance to rapid gas decompression. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C). Exposure to strong oxidizing acids or ketones will shorten service life.

Maintenance and OEM teams specify it across automotive air conditioning, heavy-duty powertrain, and oilfield and downhole equipment.

HSN80365 ships individually. Unit weight is approximately 16.4 g and nominal inside diameter is listed as 7 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.