4.5MM CS X 115MM ID BLACK BUNA 70D

The H4.5X115 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 115 mm (4.528 in), a cross section of 4.5 mm (0.177 in), and an outside diameter of 124 mm (4.88 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) is valued for the most widely specified general-purpose sealing elastomer and low compression set under sustained load. The material holds up against greases and lubricants, petroleum-based oils, and propane and butane. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).

Maintenance and OEM teams specify it across fluid power, construction equipment, and general industrial maintenance.

Order part number H4.5X115, sold individually. Review your operating media and conditions against this specification before installation.