568-902 URETHANE 70 DURO ORINGS

The U70902 is an AS568-902 clear Polyurethane (AU/EU) 70 Shore A O-Ring built to an inside diameter of 0.239 in (6.07 mm), a cross section of 0.064 in (1.63 mm), and an outside diameter of 0.367 in (9.32 mm). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

The compound resists abrasion and wear, ozone, and petroleum oils. That behavior comes from the compound itself: Polyurethane (AU/EU) is widely chosen for toughness that outperforms conventional rubber compounds and long wear life in dynamic reciprocating service. Rated temperature range runs from -65°F (-53.9°C) to 200°F (93.3°C) in continuous service. It is not the right choice where acids and bases or prolonged humidity at elevated temperature are present.

You will find this material specified across hydraulic cylinders, construction machinery, and off-highway equipment.

Reference part number U70902 when ordering; the item is sold individually. Check the compound against your process media, pressure and temperature before committing to a design. For a size or compound outside the standard catalog, APG can quote from a print or sample.