568-163 URETHANE 90 ORINGS -PREM GRADE

The U90163 is an AS568-163 clear Polyurethane (AU/EU) 90 Shore A O-Ring supplied with an inside diameter of 5.987 in (152.07 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 6.193 in (157.3 mm). This o-ring compresses into its gland to block fluid or gas migration across a joint.

Polyurethane (AU/EU) is known for toughness that outperforms conventional rubber compounds and exceptional abrasion resistance. The material holds up against petroleum oils, ozone, and impact and shock loading. Rated temperature range runs from -65°F (-53.9°C) to 200°F (93.3°C) in continuous service. Verify compatibility before use with ketones or prolonged humidity at elevated temperature.

Maintenance and OEM teams specify it across high-pressure fluid power, press and forming equipment, and construction machinery.

Order part number U90163, sold individually. Nominal inside diameter is listed as 6 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.