The U90427 is an AS568-427 clear Polyurethane (AU/EU) 90 Shore A O-Ring built to an inside diameter of 4.725 in (120.02 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 5.275 in (133.99 mm). This o-ring remains the most cost-effective sealing element available for pressurized assemblies.
Polyurethane (AU/EU) delivers very high tensile strength and load capacity, long wear life in dynamic reciprocating service. This material stands up to impact and shock loading, abrasion and wear, and ozone. Rated temperature range runs from -65°F (-53.9°C) to 200°F (93.3°C) in continuous service. It should not be specified for service in hot water and steam or acids and bases.
Maintenance and OEM teams specify it across high-pressure fluid power, construction machinery, and mining and heavy equipment.
This item is sold individually under part number U90427. Application requirements vary, so validate compatibility with your process conditions prior to installation.
Description 568-427 URETHANE 90 ORINGS -PREM GRADE
Actual Cross Section 0.275 inch (6.99 mm)
Actual Inside Diameter 4.725 inch (120.02 mm)
Actual Outside Diameter 5.275 inch (133.99 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium