568-335 HSN90 DURO ORINGS

This o-ring is supplied in AS568-335 green HNBR (Hydrogenated Nitrile) 90 Shore A built to an inside diameter of 2.725 in (69.22 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 3.145 in (79.88 mm), catalogued under part number HSN90335. It provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, HNBR (Hydrogenated Nitrile) is known for strong resistance to rapid gas decompression, long service life in refrigerant and oilfield duty. The material holds up against petroleum oils and fuels, heat and oxidation, and ozone and weathering. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C). It is not the right choice where ketones or strong oxidizing acids are present.

Maintenance and OEM teams specify it across automotive air conditioning, commercial refrigeration, and heavy-duty powertrain.

Stocked as HSN90335 and sold individually. Unit weight is approximately 6.8261 g and nominal inside diameter is listed as 2 3/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.