Buna 70-209-Black-Pk100

Ordered as SB-H70209-100, this is an AS568-209 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 0.671 in (17.04 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 0.949 in (24.1 mm). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces. Source specification:0.9375IDX.6875"ODX.125"CS.

As a material, Buna-N (Nitrile) delivers reliable performance in both static and dynamic service, strong abrasion and tear resistance. The compound resists propane and butane, greases and lubricants, and many alcohols. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in strong acids or automotive brake fluid.

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

Reference part number SB-H70209-100 when ordering; the item is sold by the bag. Application requirements vary, so validate compatibility with your process conditions prior to installation.