HSN (HNBR) 80 568-909

The HSN80909 is an AS568-909 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring built to an inside diameter of 0.706 in (17.93 mm), a cross section of 0.097 in (2.46 mm), and an outside diameter of 0.9 in (22.86 mm). This o-ring delivers dependable bidirectional sealing in a compact groove envelope.

HNBR (Hydrogenated Nitrile) is valued for strong resistance to rapid gas decompression, excellent abrasion and tear strength. The material holds up against petroleum oils and fuels, sour gas and amine inhibitors, and modern refrigerants. Published continuous service range is -40°F (-40°C) to 325°F (162.8°C). Exposure to strong oxidizing acids or chlorinated hydrocarbons will shorten service life.

Maintenance and OEM teams specify it across engine timing systems, automotive air conditioning, and oilfield and downhole equipment.

Reference part number HSN80909 when ordering; the item is sold individually. Nominal inside diameter is listed as 9/16 inch. Review your operating media and conditions against this specification before installation.