HSN (HNBR) 80 568-237

APG stocks the HSN80237, an AS568-237 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring built to an inside diameter of 3.359 in (85.32 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.637 in (92.38 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

HNBR (Hydrogenated Nitrile) is known for the oil resistance of nitrile with substantially better heat capability, improved ozone and weathering resistance over standard nitrile. The compound resists modern refrigerants, ozone and weathering, and petroleum oils and fuels. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C).

You will find this material specified across heavy-duty powertrain, engine timing systems, and commercial refrigeration.

This item is sold individually under part number HSN80237. Unit weight is approximately 3.6093 g. 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.