HSN (HNBR) 80 568-353

Part number HSN80353 is an AS568-353 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring supplied with an inside diameter of 4.975 in (126.37 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.395 in (137.03 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

HNBR (Hydrogenated Nitrile) is specified here for improved ozone and weathering resistance over standard nitrile, strong resistance to rapid gas decompression. It resists petroleum oils and fuels, sour gas and amine inhibitors, and heat and oxidation. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). Exposure to chlorinated hydrocarbons or esters will shorten service life.

You will find this material specified across automotive air conditioning, commercial refrigeration, and engine timing systems.

This item is sold individually under part number HSN80353. Unit weight is approximately 11.8695 g. Review your operating media and conditions against this specification before installation.