568-135 HSN90 DURO ORINGS

APG stocks the HSN90135, an AS568-135 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring measuring an inside diameter of 1.925 in (48.9 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.131 in (54.13 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

HNBR (Hydrogenated Nitrile) offers long service life in refrigerant and oilfield duty, improved ozone and weathering resistance over standard nitrile. The material holds up against modern refrigerants, sour gas and amine inhibitors, and petroleum oils and fuels. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C). It should not be specified for service in chlorinated hydrocarbons or ketones.

You will find this material specified across commercial refrigeration, oilfield and downhole equipment, and heavy-duty powertrain.

HSN90135 ships individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.