568-347 URETHANE 70 DURO ORINGS

Ordered as U70347, this is an AS568-347 clear Polyurethane (AU/EU) 70 Shore A O-Ring measuring an inside diameter of 4.225 in (107.32 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.645 in (117.98 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The compound resists petroleum oils, abrasion and wear, and extrusion under high pressure. That behavior comes from the compound itself: Polyurethane (AU/EU) is known for exceptional abrasion resistance and outstanding extrusion resistance at elevated pressure. Continuous operating temperature is published at -65°F (-53.9°C) to 200°F (93.3°C). Exposure to acids and bases or prolonged humidity at elevated temperature will shorten service life.

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

Stocked as U70347 and sold individually. Nominal inside diameter is listed as 4 1/4 inch. Review your operating media and conditions against this specification before installation. 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.