Ordered as H5.7X269.3, this is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 269.3 mm (10.602 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 280.7 mm (11.05 in). The o-ring remains the most cost-effective sealing element available for pressurized assemblies. Source specification: Metric O-RING, JIS G270.
It resists water, propane and butane, and hydraulic fluids. Buna-N (Nitrile) is specified for an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ketones or polar solvents are present.
Common environments for this compound include agricultural equipment, general industrial maintenance, and fluid power.
This item is sold individually under part number H5.7X269.3. Unit weight is approximately 26.665 g. Check the compound against your process media, pressure and temperature before committing to a design.
Description 5.7MM CS X 269.3MM ID BLACK BUNA 70D
Actual Outside Diameter 280.7 mm (11.05 inch)
Actual Cross Section 5.7 mm (0.224 inch)
Actual Inside Diameter 269.3 mm (10.602 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity