568-315 HSN90 DURO ORINGS

Part number HSN90315 is an AS568-315 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring measuring an inside diameter of 0.787 in (19.99 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.207 in (30.66 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

This material stands up to ozone and weathering, sour gas and amine inhibitors, and petroleum oils and fuels. That behavior comes from the compound itself: HNBR (Hydrogenated Nitrile) is valued for long service life in refrigerant and oilfield duty, improved ozone and weathering resistance over standard nitrile. Published continuous service range is -40°F (-40°C) to 325°F (162.8°C). Applications involving chlorinated hydrocarbons or ketones call for a different compound.

Common environments for this compound include oilfield and downhole equipment, automotive air conditioning, and commercial refrigeration.

Order part number HSN90315, sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.