568-366 GREEN HNBR (HSN) 70 ORINGS

APG stocks the HS70366, an AS568-366 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring measuring an inside diameter of 7.225 in (183.52 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 7.645 in (194.18 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

This material stands up to sour gas and amine inhibitors, ozone and weathering, and petroleum oils and fuels. HNBR (Hydrogenated Nitrile) delivers strong resistance to rapid gas decompression, improved ozone and weathering resistance over standard nitrile. Published continuous service range is -40°F (-40°C) to 325°F (162.8°C). It should not be specified for service in esters or ketones.

You will find this material specified across commercial refrigeration, engine timing systems, and heavy-duty powertrain.

Reference part number HS70366 when ordering; the item is sold individually. Nominal inside diameter is listed as 7 1/4 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.