7MM CS X 307MM ID BLACK BUNA 70D

The H7X307 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 307 mm (12.087 in), a cross section of 7 mm (0.276 in), and an outside diameter of 321 mm (12.64 in). This o-ring remains the most cost-effective sealing element available for pressurized assemblies.

This material stands up to many alcohols, petroleum-based oils, and hydraulic fluids. That behavior comes from the compound itself: Buna-N (Nitrile) offers low compression set under sustained load and the most widely specified general-purpose sealing elastomer. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C).

It sees regular use in agricultural equipment, construction equipment, and hydraulic and pneumatic systems.

H7X307 ships individually. Unit weight is approximately 47.17 g. Check the compound against your process media, pressure and temperature before committing to a design.