568-423 GREEN HNBR (HSN) 70 ORINGS

This o-ring is supplied in AS568-423 green HNBR (Hydrogenated Nitrile) 70 Shore A measuring an inside diameter of 4.225 in (107.32 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 4.775 in (121.29 mm), catalogued under part number HS70423. It creates a positive seal at flange, piston and rod interfaces without added hardware.

HNBR (Hydrogenated Nitrile) offers strong resistance to rapid gas decompression, improved ozone and weathering resistance over standard nitrile. It resists modern refrigerants, petroleum oils and fuels, and ozone and weathering. Published continuous service range is -40°F (-40°C) to 325°F (162.8°C). It is not the right choice where ketones or chlorinated hydrocarbons are present.

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

Order part number HS70423, sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application. For a size or compound outside the standard catalog, APG can quote from a print or sample.