4MM CS X 58MM ID BLACK BUNA 70D

Ordered as H4X58, this is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 58 mm (2.283 in), a cross section of 4 mm (0.157 in), and an outside diameter of 66 mm (2.6 in). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Buna-N (Nitrile) is specified here 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 automotive brake fluid call for a different compound.

Maintenance and OEM teams specify it across automotive, general industrial maintenance, and agricultural equipment.

This item is sold individually under part number H4X58. Unit weight is approximately 3.0431 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.