568-157 URETHANE 90 ORINGS -PREM GRADE

Ordered as U90157, this is an AS568-157 clear Polyurethane (AU/EU) 90 Shore A O-Ring built to an inside diameter of 4.487 in (113.97 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 4.693 in (119.2 mm). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Polyurethane (AU/EU) is specified here for outstanding extrusion resistance at elevated pressure and toughness that outperforms conventional rubber compounds. The material holds up against impact and shock loading, abrasion and wear, and extrusion under high pressure. Service temperature is rated from -65°F (-53.9°C) through 200°F (93.3°C). Verify compatibility before use with acids and bases or prolonged humidity at elevated temperature.

Typical settings include hydraulic cylinders, high-pressure fluid power, and mining and heavy equipment.

Reference part number U90157 when ordering; the item is sold individually. Nominal inside diameter is listed as 4 1/2 inch. Check the compound against your process media, pressure and temperature before committing to a design.