Part number U90403 is an AS568-403 clear Polyurethane (AU/EU) 90 Shore A O-Ring measuring an inside diameter of 1.725 in (43.82 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 2.275 in (57.79 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.
As a material, Polyurethane (AU/EU) is known for outstanding extrusion resistance at elevated pressure and exceptional abrasion resistance. The material holds up against abrasion and wear, extrusion under high pressure, and petroleum oils. Published continuous service range is -65°F (-53.9°C) to 200°F (93.3°C). Exposure to prolonged humidity at elevated temperature or ketones will shorten service life.
You will find this material specified across high-pressure fluid power, off-highway equipment, and press and forming equipment.
Order part number U90403, sold individually. Nominal inside diameter is listed as 1 3/4 inch. Check the compound against your process media, pressure and temperature before committing to a design.
Description 568-403 URETHANE 90 ORINGS -PREM GRADE
Actual Cross Section 0.275 inch (6.99 mm)
Actual Inside Diameter 1.725 inch (43.82 mm)
Actual Outside Diameter 2.275 inch (57.79 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium