-457 BLACK BUNA 70D O-RING

This o-ring is supplied in AS568-457 black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 13.975 in (354.97 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 14.525 in (368.94 mm), catalogued under part number H70MD457. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) delivers the most widely specified general-purpose sealing elastomer and low compression set under sustained load. The compound resists many alcohols, hydraulic fluids, and greases and lubricants. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Exposure to ozone and direct sunlight or polar solvents will shorten service life.

This o-ring is metal detectable for HACCP and foreign-body control programs. It sees regular use in construction equipment, hydraulic and pneumatic systems, and automotive.

Order part number H70MD457, sold individually. Nominal inside diameter is listed as 14 inch. 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.