568-136 HSN90 DURO ORINGS

The HSN90136 is an AS568-136 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring measuring 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). This o-ring delivers dependable bidirectional sealing in a compact groove envelope.

The compound resists heat and oxidation, sour gas and amine inhibitors, and petroleum oils and fuels. HNBR (Hydrogenated Nitrile) is specified for long service life in refrigerant and oilfield duty, excellent abrasion and tear strength. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). It should not be specified for service in esters or chlorinated hydrocarbons.

Common environments for this compound include engine timing systems, commercial refrigeration, and automotive air conditioning.

Stocked as HSN90136 and sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. 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.