5.7MM CS X 44.3MM ID BLACK BUNA 70D

APG stocks the H5.7X44.3, a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 44.3 mm (1.744 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 55.7 mm (2.19 in). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Buna-N (Nitrile) is known for low compression set under sustained load and an economical choice for high-volume maintenance programs. The compound resists propane and butane, hydraulic fluids, and petroleum-based oils. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).

It sees regular use in general industrial maintenance, hydraulic and pneumatic systems, and agricultural equipment.

Stocked as H5.7X44.3 and sold individually. Unit weight is approximately 5.0083 g. Check the compound against your process media, pressure and temperature before committing to a design. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.