568-444 URETHANE 90 ORINGS -PREM GRADE

U90444 is an AS568-444 clear Polyurethane (AU/EU) 90 Shore A O-Ring with an inside diameter of 7.725 in (196.22 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 8.275 in (210.19 mm). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, Polyurethane (AU/EU) delivers exceptional abrasion resistance and long wear life in dynamic reciprocating service. The material holds up against extrusion under high pressure, petroleum oils, and impact and shock loading. Rated temperature range runs from -65°F (-53.9°C) to 200°F (93.3°C) in continuous service. Applications involving hot water and steam or ketones call for a different compound.

You will find this material specified across off-highway equipment, high-pressure fluid power, and press and forming equipment.

Order part number U90444, sold individually. Nominal inside diameter is listed as 7 3/4 inch. Review your operating media and conditions against this specification before installation.