-276 BLACK BUNA 70D O-RING

H70MD276 is an AS568-276 black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 10.984 in (278.99 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 11.262 in (286.05 mm). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The material holds up against propane and butane, many alcohols, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) delivers the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in ketones or polar solvents.

This o-ring is metal detectable for HACCP and foreign-body control programs. You will find this material specified across fluid power, hydraulic and pneumatic systems, and automotive.

H70MD276 ships individually. Nominal inside diameter is listed as 11 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.