APG stocks the U70209, an AS568-209 clear Polyurethane (AU/EU) 70 Shore A O-Ring with an inside diameter of 0.671 in (17.04 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 0.949 in (24.1 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
As a material, Polyurethane (AU/EU) is specified for toughness that outperforms conventional rubber compounds and exceptional abrasion resistance. The compound resists abrasion and wear, extrusion under high pressure, and impact and shock loading. Continuous operating temperature is published at -65°F (-53.9°C) to 200°F (93.3°C). It is not the right choice where ketones or prolonged humidity at elevated temperature are present.
You will find this material specified across mining and heavy equipment, hydraulic cylinders, and off-highway equipment.
Reference part number U70209 when ordering; the item is sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description 568-209 URETHANE 70 DURO ORINGS
uf_description2 .671" (17.04MM) ID X .139" (3.53MM) C
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 0.671 inch (17.04 mm)
Actual_OD 0.949 inch (24.1 mm)
ProductCode Description O-Rings - Bulk - Premium