U70421 is an AS568-421 clear Polyurethane (AU/EU) 70 Shore A O-Ring built to an inside diameter of 3.975 in (100.97 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 4.525 in (114.94 mm). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope.
Polyurethane (AU/EU) is known for very high tensile strength and load capacity, toughness that outperforms conventional rubber compounds. This material stands up to impact and shock loading, petroleum oils, 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 ketones.
Typical settings include high-pressure fluid power, press and forming equipment, and hydraulic cylinders.
Order part number U70421, sold individually. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description 568-421 URETHANE 70 DURO ORINGS
uf_description2 3.975" (100.97MM) ID X .275" (6.99MM) CS
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 3.975 inch (100.97 mm)
Actual_OD 4.525 inch (114.94 mm)
ProductCode Description O-Rings - Bulk - Premium