5MM CS X 115MM ID BLACK BUNA 70D

APG stocks the H5X115, a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 115 mm (4.528 in), a cross section of 5 mm (0.197 in), and an outside diameter of 125 mm (4.92 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, Buna-N (Nitrile) is known for strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. Expect good resistance to greases and lubricants, many alcohols, and propane and butane. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ketones or strong acids.

Maintenance and OEM teams specify it across hydraulic and pneumatic systems, agricultural equipment, and construction equipment.

Order part number H5X115, sold individually. Unit weight is approximately 9.04 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.