568-033 GREEN HNBR (HSN) 70 ORINGS

This o-ring is supplied in AS568-033 green HNBR (Hydrogenated Nitrile) 70 Shore A with an inside diameter of 1.989 in (50.52 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 2.129 in (54.08 mm), catalogued under part number HS70033. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

As a material, HNBR (Hydrogenated Nitrile) delivers excellent abrasion and tear strength, improved ozone and weathering resistance over standard nitrile. It resists 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). Applications involving strong oxidizing acids or ketones call for a different compound.

It sees regular use in commercial refrigeration, oilfield and downhole equipment, and automotive air conditioning.

Reference part number HS70033 when ordering; the item is sold individually. Nominal inside diameter is listed as 2 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.