The U90405 is an AS568-405 clear Polyurethane (AU/EU) 90 Shore A O-Ring built to an inside diameter of 1.975 in (50.17 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 2.525 in (64.14 mm). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
As a material, Polyurethane (AU/EU) is known for toughness that outperforms conventional rubber compounds, very high tensile strength and load capacity. This material stands up to impact and shock loading, ozone, and petroleum oils. Rated temperature range runs from -65°F (-53.9°C) to 200°F (93.3°C) in continuous service. Applications involving ketones or prolonged humidity at elevated temperature call for a different compound.
You will find this material specified across construction machinery, mining and heavy equipment, and high-pressure fluid power.
Order part number U90405, sold individually. Nominal inside diameter is listed as 2 inch. Review your operating media and conditions against this specification before installation.
Description 568-405 URETHANE 90 ORINGS -PREM GRADE
Actual Cross Section 0.275 inch (6.99 mm)
Actual Inside Diameter 1.975 inch (50.17 mm)
Actual Outside Diameter 2.525 inch (64.14 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium