3.5MM CS X 29MM ID BLACK BUNA 70D

The H3.5X29 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 29 mm (1.142 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 36 mm (1.42 in). This o-ring remains the most cost-effective sealing element available for pressurized assemblies.

This material stands up to propane and butane, hydraulic fluids, and many alcohols. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving polar solvents or strong acids call for a different compound.

Typical settings include hydraulic and pneumatic systems, construction equipment, and agricultural equipment.

Order part number H3.5X29, sold individually. Unit weight is approximately 1.9539 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.