5.3MM CS X 53MM ID BLACK BUNA 70D

This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A supplied with an inside diameter of 53 mm (2.087 in), a cross section of 5.3 mm (0.209 in), and an outside diameter of 63.6 mm (2.5 in), catalogued under part number H5.3X53. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) offers an economical choice for high-volume maintenance programs and low compression set under sustained load. This material stands up to propane and butane, petroleum-based oils, and water. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with polar solvents or ozone and direct sunlight.

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

Order part number H5.3X53, sold individually. Unit weight is approximately 5.0487 g. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.