568-158 GREEN HNBR (HSN) 70 ORINGS

Part number HS70158 is an AS568-158 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring measuring an inside diameter of 4.737 in (120.32 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 4.943 in (125.55 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

HNBR (Hydrogenated Nitrile) is valued for long service life in refrigerant and oilfield duty, strong resistance to rapid gas decompression. It resists petroleum oils and fuels, sour gas and amine inhibitors, and heat and oxidation. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C). Verify compatibility before use with chlorinated hydrocarbons or esters.

Common environments for this compound include engine timing systems, automotive air conditioning, and commercial refrigeration.

Stocked as HS70158 and sold individually. Nominal inside diameter is listed as 4 3/4 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.