H3X119.5 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 119.5 mm (4.705 in), a cross section of 3 mm (0.118 in), and an outside diameter of 125.5 mm (4.94 in). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint.
Buna-N (Nitrile) delivers reliable performance in both static and dynamic service, low compression set under sustained load. It resists greases and lubricants, petroleum-based oils, and many alcohols. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Exposure to strong acids or polar solvents will shorten service life.
Common environments for this compound include construction equipment, hydraulic and pneumatic systems, and agricultural equipment.
Order part number H3X119.5, sold individually. Unit weight is approximately 3.3714 g. Check the compound against your process media, pressure and temperature before committing to a design.
Description 3MM CS X 119.5MM ID BLACK BUNA 70D
Actual Outside Diameter 125.5 mm (4.94 inch)
Actual Cross Section 3 mm (0.118 inch)
Actual Inside Diameter 119.5 mm (4.705 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity