5MM CS X 107MM ID BLACK BUNA 70D

Ordered as H5X107, this is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 107 mm (4.213 in), a cross section of 5 mm (0.197 in), and an outside diameter of 117 mm (4.61 in). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.

This material stands up to hydraulic fluids, petroleum-based oils, and many alcohols. That behavior comes from the compound itself: Buna-N (Nitrile) is specified for the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where strong acids or polar solvents are present.

Common environments for this compound include hydraulic and pneumatic systems, construction equipment, and general industrial maintenance.

Order part number H5X107, sold individually. Unit weight is approximately 8.718 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.