HSN (HNBR) 80 568-243

Part number HSN80243 is an AS568-243 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring with an inside diameter of 4.109 in (104.37 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.387 in (111.43 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

HNBR (Hydrogenated Nitrile) is specified here for strong resistance to rapid gas decompression, long service life in refrigerant and oilfield duty. It resists sour gas and amine inhibitors, modern refrigerants, and ozone and weathering. The material carries a published service range of -40°F (-40°C) to 325°F (162.8°C).

Common environments for this compound include commercial refrigeration, heavy-duty powertrain, and automotive air conditioning.

This item is sold individually under part number HSN80243. Unit weight is approximately 4.284 g and nominal inside diameter is listed as 4 1/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.