HSN (HNBR) 80 568-226

Part number HSN80226 is an AS568-226 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring with an inside diameter of 1.984 in (50.39 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 2.262 in (57.45 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, HNBR (Hydrogenated Nitrile) is known for long service life in refrigerant and oilfield duty, improved ozone and weathering resistance over standard nitrile. It resists petroleum oils and fuels, sour gas and amine inhibitors, and modern refrigerants. The material carries a published service range of -40°F (-40°C) to 325°F (162.8°C). Applications involving esters or strong oxidizing acids call for a different compound.

You will find this material specified across oilfield and downhole equipment, engine timing systems, and heavy-duty powertrain.

Reference part number HSN80226 when ordering; the item is sold individually. Unit weight is approximately 2.2571 g and nominal inside diameter is listed as 2 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.