-449 BLACK BUNA 70D O-RING

Part number H70MD449 is an AS568-449 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 9.975 in (253.37 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 10.525 in (267.34 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Buna-N (Nitrile) delivers an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. It resists hydraulic fluids, propane and butane, and greases and lubricants. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It should not be specified for service in polar solvents or strong acids.

The compound is metal detectable for HACCP and foreign-body control programs. Common environments for this compound include agricultural equipment, general industrial maintenance, and hydraulic and pneumatic systems.

Stocked as H70MD449 and sold individually. Nominal inside diameter is listed as 10 inch. Review your operating media and conditions against this specification before installation.