568-913 HSN90 DURO ORINGS

Part number HSN90913 is an AS568-913 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring measuring an inside diameter of 0.986 in (25.04 mm), a cross section of 0.116 in (2.95 mm), and an outside diameter of 1.218 in (30.94 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

HNBR (Hydrogenated Nitrile) is specified here for long service life in refrigerant and oilfield duty, strong resistance to rapid gas decompression. The compound resists sour gas and amine inhibitors, heat and oxidation, and petroleum oils and fuels. Rated temperature range runs from -40°F (-40°C) to 325°F (162.8°C) in continuous service.

Maintenance and OEM teams specify it across engine timing systems, oilfield and downhole equipment, and automotive air conditioning.

HSN90913 ships individually. Nominal inside diameter is listed as 13/16 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.