568-377 URETHANE 70 DURO ORINGS

APG stocks the U70377, an AS568-377 clear Polyurethane (AU/EU) 70 Shore A O-Ring with an inside diameter of 9.975 in (253.37 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 10.395 in (264.03 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

It resists impact and shock loading, abrasion and wear, and extrusion under high pressure. That behavior comes from the compound itself: Polyurethane (AU/EU) delivers long wear life in dynamic reciprocating service and outstanding extrusion resistance at elevated pressure. Published continuous service range is -65°F (-53.9°C) to 200°F (93.3°C). Exposure to acids and bases or hot water and steam will shorten service life.

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

Stocked as U70377 and sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.