HSN (HNBR) 80 568-136

Part number HSN80136 is an AS568-136 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring built to an inside diameter of 1.987 in (50.47 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.193 in (55.7 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

HNBR (Hydrogenated Nitrile) is specified here for oil resistance of nitrile with substantially better heat capability, excellent abrasion and tear strength. This material stands up to modern refrigerants, petroleum oils and fuels, and heat and oxidation. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). Applications involving ketones or esters call for a different compound.

Typical settings include commercial refrigeration, heavy-duty powertrain, and oilfield and downhole equipment.

Reference part number HSN80136 when ordering; the item is sold individually. Nominal inside diameter is listed as 2 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.