5.7MM CS X 104MM ID BLACK BUNA 70D

APG stocks the H5.7X104, a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 104 mm (4.094 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 115.4 mm (4.54 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs and low compression set under sustained load. This material stands up to hydraulic fluids, many alcohols, and water. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C).

Maintenance and OEM teams specify it across automotive, agricultural equipment, and hydraulic and pneumatic systems.

Stocked as H5.7X104 and sold individually. Unit weight is approximately 10.7402 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.