*568-239 URETHANE 70 DURO ORINGS

Ordered as U70239, this is an AS568-239 clear Polyurethane (AU/EU) 70 Shore A O-Ring supplied with an inside diameter of 3.609 in (91.67 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.887 in (98.73 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Polyurethane (AU/EU) is specified for long wear life in dynamic reciprocating service and outstanding extrusion resistance at elevated pressure. It resists ozone, extrusion under high pressure, and petroleum oils. Service temperature is rated from -65°F (-53.9°C) through 200°F (93.3°C). Exposure to hot water and steam or prolonged humidity at elevated temperature will shorten service life.

It sees regular use in construction machinery, press and forming equipment, and off-highway equipment.

Reference part number U70239 when ordering; the item is sold individually. Nominal inside diameter is listed as 3 5/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.