568-152 GREEN HNBR (HSN) 70 ORINGS

Part number HS70152 is an AS568-152 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring with an inside diameter of 3.237 in (82.22 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 3.443 in (87.45 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

It resists petroleum oils and fuels, heat and oxidation, and modern refrigerants. That behavior comes from the compound itself: HNBR (Hydrogenated Nitrile) is valued for long service life in refrigerant and oilfield duty, improved ozone and weathering resistance over standard nitrile. Rated temperature range runs from -40°F (-40°C) to 325°F (162.8°C) in continuous service. Exposure to ketones or chlorinated hydrocarbons will shorten service life.

You will find this material specified across oilfield and downhole equipment, heavy-duty powertrain, and engine timing systems.

Stocked as HS70152 and sold individually. Nominal inside diameter is listed as 3 1/4 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.