-434 BLACK BUNA 70D O-RING

The H70434 is an AS568-434 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 5.6 in (142.24 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 6.15 in (156.21 mm). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

This material stands up to water, propane and butane, and hydraulic fluids. That behavior comes from the compound itself: Buna-N (Nitrile) is specified for strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).

It sees regular use in hydraulic and pneumatic systems, construction equipment, and general industrial maintenance.

Stocked as H70434 and sold individually. Unit weight is approximately 21.9719 g. 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.