568-263 GREEN HNBR (HSN) 70 ORINGS

APG stocks the HS70263, an AS568-263 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring built to an inside diameter of 7.234 in (183.74 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 7.512 in (190.8 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

As a material, HNBR (Hydrogenated Nitrile) is known for improved ozone and weathering resistance over standard nitrile, the oil resistance of nitrile with substantially better heat capability. It resists heat and oxidation, modern refrigerants, and ozone and weathering. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C).

You will find this material specified across automotive air conditioning, engine timing systems, and heavy-duty powertrain.

HS70263 ships individually. Nominal inside diameter is listed as 7 1/4 inch. Check the compound against your process media, pressure and temperature before committing to a design.