H6X56 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 56 mm (2.205 in), a cross section of 6 mm (0.236 in), and an outside diameter of 68 mm (2.68 in). In service, 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 widely chosen for low compression set under sustained load and an economical choice for high-volume maintenance programs. This material stands up to hydraulic fluids, water, and propane and butane. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving ketones or polar solvents call for a different compound.
Common environments for this compound include construction equipment, hydraulic and pneumatic systems, and general industrial maintenance.
Reference part number H6X56 when ordering; the item is sold individually. Unit weight is approximately 6.745 g. Check the compound against your process media, pressure and temperature before committing to a design. For a size or compound outside the standard catalog, APG can quote from a print or sample.
description 6MM CS X 56MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 68 mm (2.68 inch)
Actual_CS 6 mm (0.236 inch)
Actual_ID 56 mm (2.205 inch)
ProductCode Description O-Rings - Metric - Commodity