HSN (HNBR) 80 568-465

This o-ring is supplied in AS568-465 green HNBR (Hydrogenated Nitrile) 80 Shore A with an inside diameter of 17.955 in (456.06 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 18.505 in (470.03 mm), catalogued under part number HSN80465. It delivers dependable bidirectional sealing in a compact groove envelope.

The material holds up against ozone and weathering, petroleum oils and fuels, and heat and oxidation. That behavior comes from the compound itself: HNBR (Hydrogenated Nitrile) offers improved ozone and weathering resistance over standard nitrile, the oil resistance of nitrile with substantially better heat capability. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). Applications involving chlorinated hydrocarbons or esters call for a different compound.

It sees regular use in heavy-duty powertrain, commercial refrigeration, and automotive air conditioning.

Reference part number HSN80465 when ordering; the item is sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.