568-323 GREEN HNBR (HSN) 70 ORINGS

Ordered as HS70323, this is an AS568-323 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 1.287 in (32.69 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.707 in (43.36 mm). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.

The compound resists sour gas and amine inhibitors, modern refrigerants, and ozone and weathering. HNBR (Hydrogenated Nitrile) is specified for strong resistance to rapid gas decompression, excellent abrasion and tear strength. The material carries a published service range of -40°F (-40°C) to 325°F (162.8°C). Applications involving esters or chlorinated hydrocarbons call for a different compound.

It sees regular use in automotive air conditioning, engine timing systems, and commercial refrigeration.

Order part number HS70323, sold individually. Nominal inside diameter is listed as 1 5/16 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.