-145 BLACK BUNA 70D O-RING

The H70145 is an AS568-145 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 2.55 in (64.77 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.756 in (70 mm). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is specified here for most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. The material holds up against petroleum-based oils, water, and many alcohols. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in polar solvents or strong acids.

Maintenance and OEM teams specify it across hydraulic and pneumatic systems, agricultural equipment, and automotive.

Reference part number H70145 when ordering; the item is sold individually. Unit weight is approximately 1.44 g and nominal inside diameter is listed as 2 9/16 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.