Buna 70-325-Black-Pk5

The SB-H70325-5 is an AS568-325 black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 1.475 in (37.47 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.895 in (48.13 mm). This o-ring remains the most cost-effective sealing element available for pressurized assemblies. This item is further identified as 1.875IDX1.5"ODX.1875"CS.

Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs, strong abrasion and tear resistance. The material holds up against many alcohols, hydraulic fluids, and greases and lubricants. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Applications involving automotive brake fluid or polar solvents call for a different compound.

You will find this material specified across automotive, construction equipment, and hydraulic and pneumatic systems.

This item is sold by the bag under part number SB-H70325-5. Nominal inside diameter is listed as 1 1/2 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.