HSN (HNBR) 80 568-402

HSN80402 is an AS568-402 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring built to an inside diameter of 1.6 in (40.64 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 2.15 in (54.61 mm). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint.

As a material, HNBR (Hydrogenated Nitrile) delivers improved ozone and weathering resistance over standard nitrile, the oil resistance of nitrile with substantially better heat capability. It resists petroleum oils and fuels, sour gas and amine inhibitors, and modern refrigerants. Published continuous service range is -40°F (-40°C) to 325°F (162.8°C). Verify compatibility before use with chlorinated hydrocarbons or esters.

Maintenance and OEM teams specify it across heavy-duty powertrain, oilfield and downhole equipment, and commercial refrigeration.

HSN80402 ships individually. Nominal inside diameter is listed as 1 5/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.