568-340 URETHANE 90 ORINGS -PREM GRADE

U90340 is an AS568-340 clear Polyurethane (AU/EU) 90 Shore A O-Ring measuring an inside diameter of 3.35 in (85.09 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 3.77 in (95.76 mm). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Expect good resistance to extrusion under high pressure, abrasion and wear, and impact and shock loading. Polyurethane (AU/EU) is widely chosen for very high tensile strength and load capacity, outstanding extrusion resistance at elevated pressure. Continuous operating temperature is published at -65°F (-53.9°C) to 200°F (93.3°C). Verify compatibility before use with hot water and steam or prolonged humidity at elevated temperature.

It sees regular use in mining and heavy equipment, hydraulic cylinders, and off-highway equipment.

This item is sold individually under part number U90340. Nominal inside diameter is listed as 3 3/8 inch. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.