568-233 GREEN HNBR (HSN) 70 ORINGS

Ordered as HS70233, this is an AS568-233 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring with an inside diameter of 2.859 in (72.62 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.137 in (79.68 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

HNBR (Hydrogenated Nitrile) is specified here for improved ozone and weathering resistance over standard nitrile, strong resistance to rapid gas decompression. The compound resists heat and oxidation, ozone and weathering, and sour gas and amine inhibitors. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). Applications involving chlorinated hydrocarbons or ketones call for a different compound.

Maintenance and OEM teams specify it across heavy-duty powertrain, engine timing systems, and automotive air conditioning.

Reference part number HS70233 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.