H5X180 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 180 mm (7.087 in), a cross section of 5 mm (0.197 in), and an outside diameter of 190 mm (7.48 in). In service, this o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
Buna-N (Nitrile) is specified here for most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. Expect good resistance to petroleum-based oils, greases and lubricants, and hydraulic fluids. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in polar solvents or automotive brake fluid.
Maintenance and OEM teams specify it across fluid power, construction equipment, and hydraulic and pneumatic systems.
This item is sold individually under part number H5X180. Unit weight is approximately 14.015 g. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description 5MM CS X 180MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 190 mm (7.48 inch)
Actual_CS 5 mm (0.197 inch)
Actual_ID 180 mm (7.087 inch)
ProductCode Description O-Rings - Metric - Commodity