HSN (HNBR) 80 568-273

The HSN80273 is an AS568-273 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring measuring an inside diameter of 9.734 in (247.24 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 10.012 in (254.3 mm). This o-ring compresses into its gland to block fluid or gas migration across a joint.

This material stands up to ozone and weathering, heat and oxidation, and sour gas and amine inhibitors. HNBR (Hydrogenated Nitrile) delivers improved ozone and weathering resistance over standard nitrile, strong resistance to rapid gas decompression. The material carries a published service range of -40°F (-40°C) to 325°F (162.8°C). Verify compatibility before use with ketones or esters.

Maintenance and OEM teams specify it across oilfield and downhole equipment, engine timing systems, and heavy-duty powertrain.

Order part number HSN80273, sold individually. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.