568-151 HSN90 DURO ORINGS

Part number HSN90151 is an AS568-151 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring measuring an inside diameter of 2.987 in (75.87 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 3.193 in (81.1 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

As a material, HNBR (Hydrogenated Nitrile) delivers improved ozone and weathering resistance over standard nitrile, excellent abrasion and tear strength. Expect good resistance to ozone and weathering, modern refrigerants, and petroleum oils and fuels. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). It is not the right choice where esters or strong oxidizing acids are present.

Maintenance and OEM teams specify it across automotive air conditioning, engine timing systems, and oilfield and downhole equipment.

This item is sold individually under part number HSN90151. Check the compound against your process media, pressure and temperature before committing to a design. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.