-173 BLACK BUNA 70D O-RING

Ordered as H70173, this is an AS568-173 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 8.487 in (215.57 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 8.693 in (220.8 mm). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

The compound resists water, hydraulic fluids, and propane and butane. Buna-N (Nitrile) delivers reliable performance in both static and dynamic service, strong abrasion and tear resistance. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to polar solvents or ketones will shorten service life.

Common environments for this compound include fluid power, hydraulic and pneumatic systems, and general industrial maintenance.

H70173 ships individually. Unit weight is approximately 4.5133 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.