Ordered as H90M7X234.3, this is a black Buna-N (Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 234.3 mm (9.224 in), a cross section of 7 mm (0.276 in), and an outside diameter of 248.3 mm (9.78 in). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
Buna-N (Nitrile) is specified here for low compression set under sustained load, reliable performance in both static and dynamic service. The material holds up against propane and butane, greases and lubricants, and water. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in polar solvents or ketones.
You will find this material specified across fluid power, automotive, and general industrial maintenance.
H90M7X234.3 ships individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.
Description 7MM CS X 234.3MM ID BLACK BUNA 90D
Actual Outside Diameter 248.3 mm (9.78 inch)
Actual Cross Section 7 mm (0.276 inch)
Actual Inside Diameter 234.3 mm (9.224 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity