5.34MM CS X 89.69MM ID BLACK BUNA 70D

The H5.34X89.69 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 89.69 mm (3.531 in), a cross section of 5.34 mm (0.21 in), and an outside diameter of 100.37 mm (3.95 in). This o-ring compresses into its gland to block fluid or gas migration across a joint.

The material holds up against petroleum-based oils, propane and butane, and hydraulic fluids. That behavior comes from the compound itself: Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Applications involving polar solvents or ketones call for a different compound.

Typical settings include construction equipment, automotive, and general industrial maintenance.

This item is sold individually under part number H5.34X89.69. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.