5.3MM CS X 140MM ID BLACK BUNA 70D

APG stocks the H5.3X140, a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 140 mm (5.512 in), a cross section of 5.3 mm (0.209 in), and an outside diameter of 150.6 mm (5.93 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs and most widely specified general-purpose sealing elastomer. The material holds up against greases and lubricants, hydraulic fluids, 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, automotive, and general industrial maintenance.

Reference part number H5.3X140 when ordering; the item is sold individually. Unit weight is approximately 12.7073 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.