568-349 URETHANE 90 ORINGS -PREM GRADE

The U90349 is an AS568-349 clear Polyurethane (AU/EU) 90 Shore A O-Ring supplied with an inside diameter of 4.475 in (113.67 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.895 in (124.33 mm). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

As a material, Polyurethane (AU/EU) delivers toughness that outperforms conventional rubber compounds, very high tensile strength and load capacity. Expect good resistance to extrusion under high pressure, impact and shock loading, and ozone. The material carries a published service range of -65°F (-53.9°C) to 200°F (93.3°C).

It sees regular use in off-highway equipment, construction machinery, and mining and heavy equipment.

Order part number U90349, sold individually. Nominal inside diameter is listed as 4 1/2 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.