568-177 URETHANE 90 ORINGS -PREM GRADE

APG stocks the U90177, an AS568-177 clear Polyurethane (AU/EU) 90 Shore A O-Ring measuring an inside diameter of 9.487 in (240.97 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 9.693 in (246.2 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

Polyurethane (AU/EU) is specified here for outstanding extrusion resistance at elevated pressure and long wear life in dynamic reciprocating service. The material holds up against extrusion under high pressure, impact and shock loading, and petroleum oils. Continuous operating temperature is published at -65°F (-53.9°C) to 200°F (93.3°C). It is not the right choice where ketones or acids and bases are present.

It sees regular use in mining and heavy equipment, construction machinery, and high-pressure fluid power.

Stocked as U90177 and sold individually. 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.