568-342 GREEN HNBR (HSN) 70 ORINGS

Part number HS70342 is an AS568-342 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring measuring an inside diameter of 3.6 in (91.44 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.02 in (102.11 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

It resists petroleum oils and fuels, modern refrigerants, and sour gas and amine inhibitors. That behavior comes from the compound itself: HNBR (Hydrogenated Nitrile) is valued for long service life in refrigerant and oilfield duty, strong resistance to rapid gas decompression. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). It is not the right choice where esters or chlorinated hydrocarbons are present.

Common environments for this compound include commercial refrigeration, automotive air conditioning, and heavy-duty powertrain.

This item is sold individually under part number HS70342. Nominal inside diameter is listed as 3 5/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.