HSN (HNBR) 80 568-318

This o-ring is supplied in AS568-318 green HNBR (Hydrogenated Nitrile) 80 Shore A measuring an inside diameter of 0.975 in (24.77 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.395 in (35.43 mm), catalogued under part number HSN80318. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

HNBR (Hydrogenated Nitrile) is known for long service life in refrigerant and oilfield duty, the oil resistance of nitrile with substantially better heat capability. Expect good resistance to sour gas and amine inhibitors, heat and oxidation, and petroleum oils and fuels. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C).

It sees regular use in heavy-duty powertrain, oilfield and downhole equipment, and engine timing systems.

This item is sold individually under part number HSN80318. Nominal inside diameter is listed as 1 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.