Part number H3X58 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 58 mm (2.283 in), a cross section of 3 mm (0.118 in), and an outside diameter of 64 mm (2.52 in). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
Buna-N (Nitrile) delivers low compression set under sustained load and the most widely specified general-purpose sealing elastomer. The material holds up against hydraulic fluids, greases and lubricants, and water. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Applications involving polar solvents or strong acids call for a different compound.
Typical settings include general industrial maintenance, agricultural equipment, and hydraulic and pneumatic systems.
Reference part number H3X58 when ordering; the item is sold individually. Unit weight is approximately 1.6483 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
description 3MM CS X 58MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 64 mm (2.52 inch)
Actual_CS 3 mm (0.118 inch)
Actual_ID 58 mm (2.283 inch)
ProductCode Description O-Rings - Metric - Commodity