APG stocks the U90453, an AS568-453 clear Polyurethane (AU/EU) 90 Shore A O-Ring with an inside diameter of 11.975 in (304.17 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 12.525 in (318.14 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
Polyurethane (AU/EU) offers exceptional abrasion resistance, very high tensile strength and load capacity. Expect good resistance to petroleum oils, impact and shock loading, and abrasion and wear. Rated temperature range runs from -65°F (-53.9°C) to 200°F (93.3°C) in continuous service. Applications involving ketones or acids and bases call for a different compound.
Maintenance and OEM teams specify it across press and forming equipment, hydraulic cylinders, and off-highway equipment.
This item is sold individually under part number U90453. Nominal inside diameter is listed as 12 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Description 568-453 URETHANE 90 ORINGS -PREM GRADE
Actual Cross Section 0.275 inch (6.99 mm)
Actual Inside Diameter 11.975 inch (304.17 mm)
Actual Outside Diameter 12.525 inch (318.14 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium