Buna 70-143-Black-Pk10

SB-H70143-10 is an AS568-143 black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 2.425 in (61.6 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.631 in (66.83 mm). In service, this o-ring remains the most cost-effective sealing element available for pressurized assemblies. The catalog record notes: 0.103CSX2.425"IDX2.631"OD.

Buna-N (Nitrile) delivers strong abrasion and tear resistance, reliable performance in both static and dynamic service. This material stands up to hydraulic fluids, propane and butane, and many alcohols. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Exposure to ketones or ozone and direct sunlight will shorten service life.

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

SB-H70143-10 ships by the bag. As always, verify media compatibility and operating conditions against the requirements of your specific application.