568-274 URETHANE 90 ORINGS -PREM GRADE

The U90274 is an AS568-274 clear Polyurethane (AU/EU) 90 Shore A O-Ring measuring an inside diameter of 9.984 in (253.59 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 10.262 in (260.65 mm). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

The material holds up against impact and shock loading, petroleum oils, and ozone. That behavior comes from the compound itself: Polyurethane (AU/EU) is valued for long wear life in dynamic reciprocating service and exceptional abrasion resistance. Rated temperature range runs from -65°F (-53.9°C) to 200°F (93.3°C) in continuous service. Exposure to ketones or prolonged humidity at elevated temperature will shorten service life.

Common environments for this compound include hydraulic cylinders, press and forming equipment, and off-highway equipment.

Reference part number U90274 when ordering; the item is sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.