This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 54.5 mm (2.146 in), a cross section of 5.3 mm (0.209 in), and an outside diameter of 65.1 mm (2.56 in), catalogued under part number H5.3X54.5. It provides a reliable static or dynamic seal by deforming into its gland under assembly load.
As a material, Buna-N (Nitrile) is specified for an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. Expect good resistance to petroleum-based oils, hydraulic fluids, and water. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It is not the right choice where strong acids or ozone and direct sunlight are present.
You will find this material specified across fluid power, general industrial maintenance, and agricultural equipment.
H5.3X54.5 ships individually. Unit weight is approximately 5.2413 g. Review your operating media and conditions against this specification before installation.
Description 5.3MM CS X 54.5MM ID BLACK BUNA 70D
Actual Outside Diameter 65.1 mm (2.56 inch)
Actual Cross Section 5.3 mm (0.209 inch)
Actual Inside Diameter 54.5 mm (2.146 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity