Ordered as U90903, this is an AS568-903 clear Polyurethane (AU/EU) 90 Shore A O-Ring measuring an inside diameter of 0.301 in (7.65 mm), a cross section of 0.064 in (1.63 mm), and an outside diameter of 0.429 in (10.9 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
The material holds up against extrusion under high pressure, ozone, and impact and shock loading. Polyurethane (AU/EU) is known for long wear life in dynamic reciprocating service, very high tensile strength and load capacity. Continuous operating temperature is published at -65°F (-53.9°C) to 200°F (93.3°C). It is not the right choice where acids and bases or ketones are present.
It sees regular use in off-highway equipment, construction machinery, and high-pressure fluid power.
U90903 ships individually. Application requirements vary, so validate compatibility with your process conditions prior to installation.
Description 568-903 URETHANE 90 ORINGS -PREM GRADE
Actual Cross Section 0.064 inch (1.63 mm)
Actual Inside Diameter 0.301 inch (7.65 mm)
Actual Outside Diameter 0.429 inch (10.9 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium