568-265 HSN90 DURO ORINGS

Part number HSN90265 is an AS568-265 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring measuring 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). An o-ring compresses into its gland to block fluid or gas migration across a joint.

As a material, HNBR (Hydrogenated Nitrile) is widely chosen for excellent abrasion and tear strength, the oil resistance of nitrile with substantially better heat capability. Expect good resistance to ozone and weathering, sour gas and amine inhibitors, and modern refrigerants. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). Applications involving chlorinated hydrocarbons or strong oxidizing acids call for a different compound.

Typical settings include heavy-duty powertrain, commercial refrigeration, and oilfield and downhole equipment.

Order part number HSN90265, sold individually. Check the compound against your process media, pressure and temperature before committing to a design.