568-387 GREEN HNBR (HSN) 70 ORINGS

Part number HS70387 is an AS568-387 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring measuring an inside diameter of 17.955 in (456.06 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 18.375 in (466.73 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

HNBR (Hydrogenated Nitrile) offers the oil resistance of nitrile with substantially better heat capability and strong resistance to rapid gas decompression. It resists petroleum oils and fuels, ozone and weathering, and heat and oxidation. Rated temperature range runs from -40°F (-40°C) to 325°F (162.8°C) in continuous service. Exposure to chlorinated hydrocarbons or ketones will shorten service life.

It sees regular use in commercial refrigeration, engine timing systems, and heavy-duty powertrain.

Order part number HS70387, sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.