1.78MM CS X 104.4MM ID BLACK BUNA 70D

This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 104.4 mm (4.11 in), a cross section of 1.78 mm (0.07 in), and an outside diameter of 107.96 mm (4.25 in), catalogued under part number H1.78X104.4. It provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, most widely specified general-purpose sealing elastomer. The material holds up against greases and lubricants, propane and butane, and water. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with strong acids or automotive brake fluid.

Maintenance and OEM teams specify it across general industrial maintenance, fluid power, and construction equipment.

Order part number H1.78X104.4, sold individually. Unit weight is approximately 0.0011 g. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.