568-446 GREEN HNBR (HSN) 70 ORINGS

Ordered as HS70446, this is an AS568-446 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring with an inside diameter of 8.475 in (215.27 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 9.025 in (229.24 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The compound resists heat and oxidation, ozone and weathering, and modern refrigerants. That behavior comes from the compound itself: HNBR (Hydrogenated Nitrile) is known for improved ozone and weathering resistance over standard nitrile, long service life in refrigerant and oilfield duty. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C).

Typical settings include engine timing systems, heavy-duty powertrain, and commercial refrigeration.

This item is sold individually under part number HS70446. Nominal inside diameter is listed as 8 1/2 inch. Check the compound against your process media, pressure and temperature before committing to a design. For a size or compound outside the standard catalog, APG can quote from a print or sample.