This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A built to an inside diameter of 57 mm (2.244 in), a cross section of 2 mm (0.079 in), and an outside diameter of 61 mm (2.4 in), catalogued under part number H2X57. It remains the most cost-effective sealing element available for pressurized assemblies.
As a material, Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. This material stands up to hydraulic fluids, propane and butane, and water. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in automotive brake fluid or polar solvents.
Common environments for this compound include fluid power, hydraulic and pneumatic systems, and agricultural equipment.
Stocked as H2X57 and sold individually. Unit weight is approximately 0.73 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description 2MM CS X 57MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 61 mm (2.4 inch)
Actual_CS 2 mm (0.079 inch)
Actual_ID 57 mm (2.244 inch)
ProductCode Description O-Rings - Metric - Commodity