HSN (HNBR) 80 568-379

This o-ring is supplied in AS568-379 green HNBR (Hydrogenated Nitrile) 80 Shore A supplied with an inside diameter of 10.975 in (278.77 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 11.395 in (289.43 mm), catalogued under part number HSN80379. It compresses into its gland to block fluid or gas migration across a joint.

The compound resists ozone and weathering, heat and oxidation, and petroleum oils and fuels. That behavior comes from the compound itself: HNBR (Hydrogenated Nitrile) is valued for the oil resistance of nitrile with substantially better heat capability, long service life in refrigerant and oilfield duty. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). Exposure to strong oxidizing acids or chlorinated hydrocarbons will shorten service life.

You will find this material specified across automotive air conditioning, commercial refrigeration, and heavy-duty powertrain.

Reference part number HSN80379 when ordering; the item is sold individually. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.