4.5MM CS X 24MM ID BLACK BUNA 70D

Part number H4.5X24 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 24 mm (0.945 in), a cross section of 4.5 mm (0.177 in), and an outside diameter of 33 mm (1.3 in). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

The material holds up against hydraulic fluids, water, and many alcohols. That behavior comes from the compound itself: Buna-N (Nitrile) is widely chosen for low compression set under sustained load, reliable performance in both static and dynamic service. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ketones or strong acids.

It sees regular use in general industrial maintenance, automotive, and fluid power.

This item is sold individually under part number H4.5X24. 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.