-371 BLACK BUNA 70D O-RING

The H70371 is an AS568-371 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 8.475 in (215.27 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 8.895 in (225.93 mm). This o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Expect good resistance to many alcohols, petroleum-based oils, and greases and lubricants. Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C).

It sees regular use in general industrial maintenance, fluid power, and automotive.

Stocked as H70371 and sold individually. Unit weight is approximately 18.89 g and nominal inside diameter is listed as 8 1/2 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. For a size or compound outside the standard catalog, APG can quote from a print or sample.