Buna 70-168-Black-Pk25

SB-H70168-25 is an AS568-168 black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 7.237 in (183.82 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 7.443 in (189.05 mm). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope. The catalog record notes: 7.4375IDX7.25"ODX.0938"CS.

As a material, Buna-N (Nitrile) delivers strong abrasion and tear resistance, reliable performance in both static and dynamic service. The compound resists hydraulic fluids, greases and lubricants, and propane and butane. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It should not be specified for service in ketones or polar solvents.

Typical settings include general industrial maintenance, construction equipment, and hydraulic and pneumatic systems.

SB-H70168-25 ships by the bag. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.