-217 BLACK BUNA 70D O-RING

Ordered as H70MD217, this is an AS568-217 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 1.171 in (29.74 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.449 in (36.8 mm). The o-ring compresses into its gland to block fluid or gas migration across a joint.

It resists greases and lubricants, water, and hydraulic fluids. That behavior comes from the compound itself: Buna-N (Nitrile) is widely chosen for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. 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 strong acids or ozone and direct sunlight.

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

Order part number H70MD217, sold individually. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.