568-377 URETHANE 90 ORINGS -PREM GRADE

U90377 is an AS568-377 clear Polyurethane (AU/EU) 90 Shore A O-Ring supplied with an inside diameter of 9.975 in (253.37 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 10.395 in (264.03 mm). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope.

Polyurethane (AU/EU) is specified for long wear life in dynamic reciprocating service and outstanding extrusion resistance at elevated pressure. The compound resists extrusion under high pressure, impact and shock loading, and petroleum oils. 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 ketones.

Maintenance and OEM teams specify it across off-highway equipment, construction machinery, and press and forming equipment.

U90377 ships individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. 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.