HSN (HNBR) 80 568-038

This o-ring is supplied in AS568-038 green HNBR (Hydrogenated Nitrile) 80 Shore A measuring an inside diameter of 2.614 in (66.4 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 2.754 in (69.95 mm), catalogued under part number HSN80038. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

HNBR (Hydrogenated Nitrile) is widely chosen for excellent abrasion and tear strength, long service life in refrigerant and oilfield duty. This material stands up to sour gas and amine inhibitors, heat and oxidation, and modern refrigerants. The material carries a published service range of -40°F (-40°C) to 325°F (162.8°C). It should not be specified for service in chlorinated hydrocarbons or strong oxidizing acids.

Maintenance and OEM teams specify it across oilfield and downhole equipment, heavy-duty powertrain, and engine timing systems.

Reference part number HSN80038 when ordering; the item is sold individually. Nominal inside diameter is listed as 2 5/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.