4MM CS X 65MM ID BLACK BUNA 90D

Part number H90M4X65 is a black Buna-N (Nitrile) 90 Shore A O-Ring with an inside diameter of 65 mm (2.559 in), a cross section of 4 mm (0.157 in), and an outside diameter of 73 mm (2.87 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

As a material, Buna-N (Nitrile) is widely chosen for reliable performance in both static and dynamic service, strong abrasion and tear resistance. This material stands up to petroleum-based oils, propane and butane, and water. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Applications involving ozone and direct sunlight or polar solvents call for a different compound.

Typical settings include hydraulic and pneumatic systems, agricultural equipment, and fluid power.

This item is sold individually under part number H90M4X65. Unit weight is approximately 3.8491 g. Check the compound against your process media, pressure and temperature before committing to a design.