568-122 HSN90 DURO ORINGS

Part number HSN90122 is an AS568-122 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring built to an inside diameter of 1.112 in (28.24 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.318 in (33.48 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

This material stands up to modern refrigerants, ozone and weathering, and heat and oxidation. HNBR (Hydrogenated Nitrile) is widely chosen for the oil resistance of nitrile with substantially better heat capability, 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. Applications involving chlorinated hydrocarbons or strong oxidizing acids call for a different compound.

Common environments for this compound include automotive air conditioning, heavy-duty powertrain, and oilfield and downhole equipment.

Reference part number HSN90122 when ordering; the item is sold individually. Nominal inside diameter is listed as 1 1/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. For a size or compound outside the standard catalog, APG can quote from a print or sample.