This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A built to an inside diameter of 240 mm (9.449 in), a cross section of 5 mm (0.197 in), and an outside diameter of 250 mm (9.84 in), catalogued under part number H5X240. It remains the most cost-effective sealing element available for pressurized assemblies.
The material holds up against petroleum-based oils, greases and lubricants, and hydraulic fluids. Buna-N (Nitrile) offers reliable performance in both static and dynamic service, low compression set under sustained load. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Exposure to ozone and direct sunlight or polar solvents will shorten service life.
You will find this material specified across construction equipment, general industrial maintenance, and hydraulic and pneumatic systems.
Order part number H5X240, sold individually. Unit weight is approximately 18.219 g. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description 5MM CS X 240MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 250 mm (9.84 inch)
Actual_CS 5 mm (0.197 inch)
Actual_ID 240 mm (9.449 inch)
ProductCode Description O-Rings - Metric - Commodity