568-129 URETHANE 70 DURO ORINGS

The U70129 is an AS568-129 clear Polyurethane (AU/EU) 70 Shore A O-Ring built to an inside diameter of 1.549 in (39.34 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.755 in (44.58 mm). This o-ring delivers dependable bidirectional sealing in a compact groove envelope.

Expect good resistance to ozone, petroleum oils, and extrusion under high pressure. That behavior comes from the compound itself: Polyurethane (AU/EU) is specified for exceptional abrasion resistance and toughness that outperforms conventional rubber compounds. Continuous operating temperature is published at -65°F (-53.9°C) to 200°F (93.3°C). It should not be specified for service in prolonged humidity at elevated temperature or ketones.

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

This item is sold individually under part number U70129. Nominal inside diameter is listed as 1 9/16 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.