4MM CS X 19MM ID BLACK BUNA 70D

Part number H4X19 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 19 mm (0.748 in), a cross section of 4 mm (0.157 in), and an outside diameter of 27 mm (1.06 in). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is valued for low compression set under sustained load, strong abrasion and tear resistance. Expect good resistance to propane and butane, many alcohols, and petroleum-based oils. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ozone and direct sunlight or ketones are present.

It sees regular use in agricultural equipment, fluid power, and general industrial maintenance.

H4X19 ships individually. Unit weight is approximately 1.1244 g. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.