3.5MM CS X 55MM ID BLACK BUNA 70D

Ordered as H3.5X55, this is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 55 mm (2.165 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 62 mm (2.44 in). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

The material holds up against hydraulic fluids, water, and petroleum-based oils. Buna-N (Nitrile) offers the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C).

Common environments for this compound include construction equipment, hydraulic and pneumatic systems, and fluid power.

This item is sold individually under part number H3.5X55. Unit weight is approximately 2.198 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.