568-413 HSN90 DURO ORINGS

HSN90413 is an AS568-413 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring with an inside diameter of 2.975 in (75.57 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 3.525 in (89.54 mm). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, HNBR (Hydrogenated Nitrile) delivers long service life in refrigerant and oilfield duty, strong resistance to rapid gas decompression. The material holds up against petroleum oils and fuels, sour gas and amine inhibitors, and ozone and weathering. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C).

Maintenance and OEM teams specify it across oilfield and downhole equipment, automotive air conditioning, and commercial refrigeration.

Reference part number HSN90413 when ordering; the item is sold individually. Nominal inside diameter is listed as 3 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.