568-015 HSN90 DURO ORINGS

Part number HSN90015 is an AS568-015 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring with an inside diameter of 0.551 in (14 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 0.691 in (17.55 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

The compound resists petroleum oils and fuels, modern refrigerants, and ozone and weathering. HNBR (Hydrogenated Nitrile) is valued for improved ozone and weathering resistance over standard nitrile, excellent abrasion and tear strength. Published continuous service range is -40°F (-40°C) to 325°F (162.8°C). It is not the right choice where strong oxidizing acids or esters are present.

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

Stocked as HSN90015 and sold individually. Nominal inside diameter is listed as 9/16 inch. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.