3.5MM CS X 52MM ID BLACK BUNA 70D

Ordered as H3.5X52, this is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 52 mm (2.047 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 59 mm (2.32 in). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is valued for the most widely specified general-purpose sealing elastomer and an economical choice for high-volume maintenance programs. The material holds up against greases and lubricants, water, and many alcohols. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving ozone and direct sunlight or ketones call for a different compound.

It sees regular use in construction equipment, hydraulic and pneumatic systems, and general industrial maintenance.

Stocked as H3.5X52 and sold individually. Unit weight is approximately 2.04 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.