HSN (HNBR) 80 568-265

HSN80265 is an AS568-265 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring supplied with an inside diameter of 7.734 in (196.44 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 8.012 in (203.5 mm). In service, this o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

HNBR (Hydrogenated Nitrile) is specified here for excellent abrasion and tear strength, improved ozone and weathering resistance over standard nitrile. This material stands up to modern refrigerants, petroleum oils and fuels, and sour gas and amine inhibitors. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C).

Common environments for this compound include heavy-duty powertrain, commercial refrigeration, and oilfield and downhole equipment.

HSN80265 ships individually. Nominal inside diameter is listed as 7 3/4 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.