5.7MM CS X 179.3MM ID BLACK BUNA 70D

Ordered as H5.7X179.3, this is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 179.3 mm (7.059 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 190.7 mm (7.51 in). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces. The catalog record notes: Metric O-RING, JIS G180.

As a material, Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. This material stands up to petroleum-based oils, greases and lubricants, and propane and butane. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C).

Typical settings include construction equipment, automotive, and general industrial maintenance.

Reference part number H5.7X179.3 when ordering; the item is sold individually. Unit weight is approximately 17.997 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.