5MM CS X 73MM ID BLACK BUNA 70D

Ordered as H5X73, this is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 73 mm (2.874 in), a cross section of 5 mm (0.197 in), and an outside diameter of 83 mm (3.27 in). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

The material holds up against propane and butane, petroleum-based oils, and greases and lubricants. Buna-N (Nitrile) is widely chosen for the most widely specified general-purpose sealing elastomer and low compression set under sustained load. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.

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

Order part number H5X73, sold individually. Unit weight is approximately 5.9956 g. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.