Ordered as U90406, this is an AS568-406 clear Polyurethane (AU/EU) 90 Shore A O-Ring supplied with an inside diameter of 2.1 in (53.34 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 2.65 in (67.31 mm). The 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 exceptional abrasion resistance and outstanding extrusion resistance at elevated pressure. The material holds up against impact and shock loading, ozone, and abrasion and wear. Rated temperature range runs from -65°F (-53.9°C) to 200°F (93.3°C) in continuous service. It is not the right choice where ketones or prolonged humidity at elevated temperature are present.
It sees regular use in mining and heavy equipment, construction machinery, and press and forming equipment.
This item is sold individually under part number U90406. Nominal inside diameter is listed as 2 1/8 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description 568-406 URETHANE 90 ORINGS -PREM GRADE
uf_description2 2.100" (53.34MM) ID X .275" (6.99MM)
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 2.1 inch (53.34 mm)
Actual_OD 2.65 inch (67.31 mm)
ProductCode Description O-Rings - Bulk - Premium