4MM CS X 117MM ID BLACK BUNA 70D

Part number H4X117 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 117 mm (4.606 in), a cross section of 4 mm (0.157 in), and an outside diameter of 125 mm (4.92 in). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Buna-N (Nitrile) is widely chosen for reliable performance in both static and dynamic service, low compression set under sustained load. It resists hydraulic fluids, greases and lubricants, and petroleum-based oils. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

Maintenance and OEM teams specify it across general industrial maintenance, construction equipment, and hydraulic and pneumatic systems.

Order part number H4X117, sold individually. Unit weight is approximately 5.9839 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. For a size or compound outside the standard catalog, APG can quote from a print or sample.