HSN (HNBR) 80 568-018

This o-ring is supplied in AS568-018 green HNBR (Hydrogenated Nitrile) 80 Shore A with an inside diameter of 0.739 in (18.77 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 0.879 in (22.33 mm), catalogued under part number HSN80018. It compresses into its gland to block fluid or gas migration across a joint.

As a material, HNBR (Hydrogenated Nitrile) is specified for strong resistance to rapid gas decompression, improved ozone and weathering resistance over standard nitrile. The material holds up against heat and oxidation, petroleum oils and fuels, and modern refrigerants. The material carries a published service range of -40°F (-40°C) to 325°F (162.8°C). Exposure to strong oxidizing acids or ketones will shorten service life.

Typical settings include heavy-duty powertrain, commercial refrigeration, and automotive air conditioning.

Order part number HSN80018, sold individually. Unit weight is approximately 0.2176 g and nominal inside diameter is listed as 3/4 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.