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568-406 URETHANE 90 ORINGS -PREM GRADE

Urethane O-Ring, 2.1 in ID x 0.275 CS, 90A, Clear, -65 to 200°F

Status
Out of Stock
Est. Ship Date
21 Oct 2026
Material
Urethane
Dash Size
406
Durometer
90 Shore A
Cross Section Type
Round
Color
Clear
Minimum Temperature
-65°F (-53.9°C)
Maximum Temperature
200°F (93.3°C)
Nominal Cross Section
1/4 inch
Nominal Inside Diameter
2 1/8 inch
Nominal Outside Diameter
2 5/8 inch
Unit of Measure
EA
SKU:
U90406

Product Specification

-
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.
Item
U90406
Description
568-406 URETHANE 90 ORINGS -PREM GRADE
Actual Cross Section
0.275 inch (6.99 mm)
Actual Inside Diameter
2.1 inch (53.34 mm)
Actual Outside Diameter
2.65 inch (67.31 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6006
Product Category
O-Rings - Bulk - Premium