568-909 GREEN HNBR (HSN) 70 ORINGS

This o-ring is supplied in AS568-909 green HNBR (Hydrogenated Nitrile) 70 Shore A with an inside diameter of 0.706 in (17.93 mm), a cross section of 0.097 in (2.46 mm), and an outside diameter of 0.9 in (22.86 mm), catalogued under part number HS70909. It delivers dependable bidirectional sealing in a compact groove envelope.

It resists heat and oxidation, ozone and weathering, and modern refrigerants. That behavior comes from the compound itself: HNBR (Hydrogenated Nitrile) is valued for the oil resistance of nitrile with substantially better heat capability, long service life in refrigerant and oilfield duty. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). Verify compatibility before use with strong oxidizing acids or esters.

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

HS70909 ships individually. Nominal inside diameter is listed as 9/16 inch. Check the compound against your process media, pressure and temperature before committing to a design.