APG stocks the U70284, an AS568-284 clear Polyurethane (AU/EU) 70 Shore A O-Ring measuring an inside diameter of 17.955 in (456.06 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 18.233 in (463.12 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.
Polyurethane (AU/EU) offers long wear life in dynamic reciprocating service and outstanding extrusion resistance at elevated pressure. The compound resists impact and shock loading, extrusion under high pressure, and petroleum oils. Rated temperature range runs from -65°F (-53.9°C) to 200°F (93.3°C) in continuous service. Exposure to ketones or hot water and steam will shorten service life.
Maintenance and OEM teams specify it across high-pressure fluid power, hydraulic cylinders, and off-highway equipment.
This item is sold individually under part number U70284. Nominal inside diameter is listed as 18 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description 568-284 URETHANE 70 DURO ORINGS
uf_description2 17.955" (456.06MM) ID X .139" (3.53MM
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 17.955 inch (456.06 mm)
Actual_OD 18.233 inch (463.12 mm)
ProductCode Description O-Rings - Bulk - Premium