HSN (HNBR) 80 568-461

The HSN80461 is an AS568-461 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring supplied with an inside diameter of 15.955 in (405.26 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 16.505 in (419.23 mm). This o-ring remains the most cost-effective sealing element available for pressurized assemblies.

HNBR (Hydrogenated Nitrile) is specified here for long service life in refrigerant and oilfield duty, strong resistance to rapid gas decompression. It resists petroleum oils and fuels, sour gas and amine inhibitors, and ozone and weathering. Published continuous service range is -40°F (-40°C) to 325°F (162.8°C).

Maintenance and OEM teams specify it across commercial refrigeration, automotive air conditioning, and oilfield and downhole equipment.

Stocked as HSN80461 and sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.