568-049 URETHANE 70 DURO ORINGS

This o-ring is supplied in AS568-049 clear Polyurethane (AU/EU) 70 Shore A measuring an inside diameter of 4.989 in (126.72 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 5.129 in (130.28 mm), catalogued under part number U70049. It provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The material holds up against impact and shock loading, extrusion under high pressure, and ozone. That behavior comes from the compound itself: Polyurethane (AU/EU) is specified for long wear life in dynamic reciprocating service and outstanding extrusion resistance at elevated pressure. Service temperature is rated from -65°F (-53.9°C) through 200°F (93.3°C). It should not be specified for service in acids and bases or hot water and steam.

It sees regular use in high-pressure fluid power, hydraulic cylinders, and off-highway equipment.

Reference part number U70049 when ordering; the item is sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. For a size or compound outside the standard catalog, APG can quote from a print or sample.