568-048 URETHANE 90 ORINGS -PREM GRADE

Part number U90048 is an AS568-048 clear Polyurethane (AU/EU) 90 Shore A O-Ring supplied with an inside diameter of 4.739 in (120.37 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 4.879 in (123.93 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

This material stands up to ozone, petroleum oils, and impact and shock loading. That behavior comes from the compound itself: Polyurethane (AU/EU) delivers very high tensile strength and load capacity, toughness that outperforms conventional rubber compounds. Rated temperature range runs from -65°F (-53.9°C) to 200°F (93.3°C) in continuous service.

It sees regular use in mining and heavy equipment, hydraulic cylinders, and construction machinery.

U90048 ships individually. Nominal inside diameter is listed as 4 3/4 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.