568-426 URETHANE 70 DURO ORINGS

The U70426 is an AS568-426 clear Polyurethane (AU/EU) 70 Shore A O-Ring built to an inside diameter of 4.6 in (116.84 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 5.15 in (130.81 mm). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

The compound resists ozone, extrusion under high pressure, and abrasion and wear. That behavior comes from the compound itself: Polyurethane (AU/EU) is widely chosen for long wear life in dynamic reciprocating service and toughness that outperforms conventional rubber compounds. Published continuous service range is -65°F (-53.9°C) to 200°F (93.3°C). Verify compatibility before use with ketones or prolonged humidity at elevated temperature.

Typical settings include off-highway equipment, press and forming equipment, and construction machinery.

Reference part number U70426 when ordering; the item is sold individually. Nominal inside diameter is listed as 4 5/8 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.