8MM CS X 55MM ID BLACK BUNA 70D

H8X55 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 55 mm (2.165 in), a cross section of 8 mm (0.315 in), and an outside diameter of 71 mm (2.8 in). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, Buna-N (Nitrile) offers an economical choice for high-volume maintenance programs and low compression set under sustained load. The material holds up against greases and lubricants, hydraulic fluids, and propane and butane. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.

Common environments for this compound include hydraulic and pneumatic systems, agricultural equipment, and general industrial maintenance.

Stocked as H8X55 and sold individually. Unit weight is approximately 11.98 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.