Ordered as U70148, this is an AS568-148 clear Polyurethane (AU/EU) 70 Shore A O-Ring built to an inside diameter of 2.737 in (69.52 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.943 in (74.75 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
Expect good resistance to impact and shock loading, extrusion under high pressure, and abrasion and wear. That behavior comes from the compound itself: Polyurethane (AU/EU) delivers outstanding extrusion resistance at elevated pressure and toughness that outperforms conventional rubber compounds. 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.
Common environments for this compound include off-highway equipment, hydraulic cylinders, and construction machinery.
This item is sold individually under part number U70148. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description 568-148 URETHANE 70 DURO ORINGS
uf_description2 2.737" (69.52MM) ID X .103" (2.62MM)
Actual_CS 0.103 inch (2.62 mm)
Actual_ID 2.737 inch (69.52 mm)
Actual_OD 2.943 inch (74.75 mm)
ProductCode Description O-Rings - Bulk - Premium