5.7MM CS X 109.2MM ID BLACK BUNA 70D

The H5.7X109.2 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 109.2 mm (4.299 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 120.6 mm (4.75 in). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

As a material, Buna-N (Nitrile) offers the most widely specified general-purpose sealing elastomer and low compression set under sustained load. The material holds up against hydraulic fluids, many alcohols, and greases and lubricants. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in polar solvents or automotive brake fluid.

You will find this material specified across automotive, general industrial maintenance, and agricultural equipment.

Reference part number H5.7X109.2 when ordering; the item is sold individually. 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.