568-245 HSN90 DURO ORINGS

Part number HSN90245 is an AS568-245 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring with an inside diameter of 4.359 in (110.72 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.637 in (117.78 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

As a material, HNBR (Hydrogenated Nitrile) is known for the oil resistance of nitrile with substantially better heat capability and strong resistance to rapid gas decompression. The compound resists heat and oxidation, modern refrigerants, and sour gas and amine inhibitors. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C).

It sees regular use in engine timing systems, oilfield and downhole equipment, and commercial refrigeration.

Stocked as HSN90245 and sold individually. Unit weight is approximately 4.6138 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.