568-320 GREEN HNBR (HSN) 70 ORINGS

This o-ring is supplied in AS568-320 green HNBR (Hydrogenated Nitrile) 70 Shore A with an inside diameter of 1.1 in (27.94 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.52 in (38.61 mm), catalogued under part number HS70320. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

HNBR (Hydrogenated Nitrile) is specified here for excellent abrasion and tear strength, long service life in refrigerant and oilfield duty. This material stands up to modern refrigerants, ozone and weathering, and petroleum oils and fuels. 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.

You will find this material specified across heavy-duty powertrain, oilfield and downhole equipment, and automotive air conditioning.

HS70320 ships individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. For a size or compound outside the standard catalog, APG can quote from a print or sample.