568-235 GREEN HNBR (HSN) 70 ORINGS

APG stocks the HS70235, an AS568-235 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring built to an inside diameter of 3.109 in (78.97 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.387 in (86.03 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

HNBR (Hydrogenated Nitrile) is widely chosen for the oil resistance of nitrile with substantially better heat capability, long service life in refrigerant and oilfield duty. Expect good resistance to heat and oxidation, ozone and weathering, and modern refrigerants. Rated temperature range runs from -40°F (-40°C) to 325°F (162.8°C) in continuous service. It should not be specified for service in esters or chlorinated hydrocarbons.

You will find this material specified across oilfield and downhole equipment, commercial refrigeration, and engine timing systems.

Order part number HS70235, sold individually. Nominal inside diameter is listed as 3 1/8 inch. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.