-425 BLACK BUNA 70D O-RING

APG stocks the H70MD425, an AS568-425 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 4.475 in (113.67 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 5.025 in (127.64 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) delivers an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. It resists propane and butane, petroleum-based oils, and many alcohols. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It is not the right choice where ketones or strong acids are present.

The compound is metal detectable for HACCP and foreign-body control programs. You will find this material specified across fluid power, hydraulic and pneumatic systems, and construction equipment.

This item is sold individually under part number H70MD425. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.