568-907 HSN90 DURO ORINGS

Part number HSN90907 is an AS568-907 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring with an inside diameter of 0.53 in (13.46 mm), a cross section of 0.082 in (2.08 mm), and an outside diameter of 0.694 in (17.63 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

This material stands up to modern refrigerants, ozone and weathering, and petroleum oils and fuels. That behavior comes from the compound itself: HNBR (Hydrogenated Nitrile) delivers strong resistance to rapid gas decompression and the oil resistance of nitrile with substantially better heat capability. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C). Applications involving chlorinated hydrocarbons or esters call for a different compound.

Common environments for this compound include heavy-duty powertrain, engine timing systems, and commercial refrigeration.

Reference part number HSN90907 when ordering; the item is sold individually. Nominal inside diameter is listed as 7/16 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.