568-408 URETHANE 90 ORINGS -PREM GRADE

Part number U90408 is an AS568-408 clear Polyurethane (AU/EU) 90 Shore A O-Ring measuring an inside diameter of 2.35 in (59.69 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 2.9 in (73.66 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Polyurethane (AU/EU) is specified here for long wear life in dynamic reciprocating service and outstanding extrusion resistance at elevated pressure. The compound resists extrusion under high pressure, abrasion and wear, and impact and shock loading. Published continuous service range is -65°F (-53.9°C) to 200°F (93.3°C). Applications involving prolonged humidity at elevated temperature or ketones call for a different compound.

Common environments for this compound include construction machinery, press and forming equipment, and high-pressure fluid power.

This item is sold individually under part number U90408. Nominal inside diameter is listed as 2 3/8 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.