568-243 URETHANE 70 DURO ORINGS

This o-ring is supplied in AS568-243 clear Polyurethane (AU/EU) 70 Shore A measuring an inside diameter of 4.109 in (104.37 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.387 in (111.43 mm), catalogued under part number U70243. It compresses into its gland to block fluid or gas migration across a joint.

Polyurethane (AU/EU) is known for long wear life in dynamic reciprocating service and exceptional abrasion resistance. The compound resists ozone, abrasion and wear, and petroleum oils. Published continuous service range is -65°F (-53.9°C) to 200°F (93.3°C). Applications involving ketones or prolonged humidity at elevated temperature call for a different compound.

Maintenance and OEM teams specify it across off-highway equipment, hydraulic cylinders, and construction machinery.

Order part number U70243, sold individually. Nominal inside diameter is listed as 4 1/8 inch. Check the compound against your process media, pressure and temperature before committing to a design. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.