568-340 GREEN HNBR (HSN) 70 ORINGS

HS70340 is an AS568-340 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring measuring an inside diameter of 3.35 in (85.09 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 3.77 in (95.76 mm). In service, this o-ring remains the most cost-effective sealing element available for pressurized assemblies.

The material holds up against heat and oxidation, ozone and weathering, and sour gas and amine inhibitors. HNBR (Hydrogenated Nitrile) delivers improved ozone and weathering resistance over standard nitrile, excellent abrasion and tear strength. Rated temperature range runs from -40°F (-40°C) to 325°F (162.8°C) in continuous service. Exposure to chlorinated hydrocarbons or strong oxidizing acids will shorten service life.

You will find this material specified across automotive air conditioning, heavy-duty powertrain, and oilfield and downhole equipment.

Stocked as HS70340 and sold individually. Nominal inside diameter is listed as 3 3/8 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.