Ordered as H90M3X79.5, this is a black Buna-N (Nitrile) 90 Shore A O-Ring with an inside diameter of 79.5 mm (3.13 in), a cross section of 3 mm (0.118 in), and an outside diameter of 85.5 mm (3.37 in). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
It resists propane and butane, petroleum-based oils, and water. Buna-N (Nitrile) delivers reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in polar solvents or ketones.
It sees regular use in automotive, general industrial maintenance, and fluid power.
This item is sold individually under part number H90M3X79.5. Application requirements vary, so validate compatibility with your process conditions prior to installation.
Description 3MM CS X 79.5MM ID BLACK BUNA 90D
Actual Outside Diameter 85.5 mm (3.37 inch)
Actual Cross Section 3 mm (0.118 inch)
Actual Inside Diameter 79.5 mm (3.13 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity