568-151 GREEN HNBR (HSN) 70 ORINGS

APG stocks the HS70151, an AS568-151 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring measuring an inside diameter of 2.987 in (75.87 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 3.193 in (81.1 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

The material holds up against sour gas and amine inhibitors, modern refrigerants, and heat and oxidation. That behavior comes from the compound itself: HNBR (Hydrogenated Nitrile) is known for strong resistance to rapid gas decompression and the oil resistance of nitrile with substantially better heat capability. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). Exposure to chlorinated hydrocarbons or strong oxidizing acids will shorten service life.

You will find this material specified across engine timing systems, heavy-duty powertrain, and oilfield and downhole equipment.

This item is sold individually under part number HS70151. Nominal inside diameter is listed as 3 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.