HSN (HNBR) 80 568-455

Part number HSN80455 is an AS568-455 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring built to an inside diameter of 12.975 in (329.57 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 13.525 in (343.54 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

HNBR (Hydrogenated Nitrile) offers long service life in refrigerant and oilfield duty, strong resistance to rapid gas decompression. It resists sour gas and amine inhibitors, heat and oxidation, and ozone and weathering. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). It is not the right choice where esters or ketones are present.

Maintenance and OEM teams specify it across engine timing systems, automotive air conditioning, and heavy-duty powertrain.

Order part number HSN80455, sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.