568-201 GREEN HNBR (HSN) 70 ORINGS

APG stocks the HS70201, an AS568-201 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring with an inside diameter of 0.171 in (4.34 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 0.449 in (11.4 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

HNBR (Hydrogenated Nitrile) is valued for long service life in refrigerant and oilfield duty, excellent abrasion and tear strength. The compound resists petroleum oils and fuels, sour gas and amine inhibitors, and ozone and weathering. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C). Exposure to ketones or strong oxidizing acids will shorten service life.

Common environments for this compound include engine timing systems, oilfield and downhole equipment, and heavy-duty powertrain.

Order part number HS70201, sold individually. Nominal inside diameter is listed as 3/16 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.