568-267 HSN90 DURO ORINGS

The HSN90267 is an AS568-267 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring built to an inside diameter of 8.234 in (209.14 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 8.512 in (216.2 mm). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

As a material, HNBR (Hydrogenated Nitrile) is valued for long service life in refrigerant and oilfield duty, excellent abrasion and tear strength. The compound resists ozone and weathering, sour gas and amine inhibitors, and heat and oxidation. Published continuous service range is -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 engine timing systems, oilfield and downhole equipment, and heavy-duty powertrain.

This item is sold individually under part number HSN90267. Nominal inside diameter is listed as 8 1/4 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.