568-431 GREEN HNBR (HSN) 70 ORINGS

Part number HS70431 is an AS568-431 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring measuring an inside diameter of 5.225 in (132.72 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 5.775 in (146.69 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

HNBR (Hydrogenated Nitrile) is specified here for long service life in refrigerant and oilfield duty, excellent abrasion and tear strength. Expect good resistance to petroleum oils and fuels, sour gas and amine inhibitors, and heat and oxidation. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). It should not be specified for service in chlorinated hydrocarbons or ketones.

It sees regular use in oilfield and downhole equipment, heavy-duty powertrain, and commercial refrigeration.

This item is sold individually under part number HS70431. Nominal inside diameter is listed as 5 1/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.