5.3MM CS X 190MM ID BLACK BUNA 70D

The H5.3X190 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 190 mm (7.48 in), a cross section of 5.3 mm (0.209 in), and an outside diameter of 200.6 mm (7.9 in). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. This material stands up to propane and butane, petroleum-based oils, and hydraulic fluids. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Applications involving strong acids or ketones call for a different compound.

It sees regular use in hydraulic and pneumatic systems, general industrial maintenance, and automotive.

Order part number H5.3X190, sold individually. Unit weight is approximately 16.783 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.