-211 BLACK BUNA 70D O-RING

This o-ring is supplied in AS568-211 black Buna-N (Nitrile) 70 Shore A with an inside diameter of 0.796 in (20.22 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.074 in (27.28 mm), catalogued under part number H70MD211. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, economical choice for high-volume maintenance programs. The material holds up against many alcohols, hydraulic fluids, and petroleum-based oils. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Applications involving polar solvents or ketones call for a different compound.

This o-ring is metal detectable for HACCP and foreign-body control programs. Common environments for this compound include construction equipment, hydraulic and pneumatic systems, and automotive.

Reference part number H70MD211 when ordering; the item is sold individually. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.