3.5MM CS X 102MM ID BLACK BUNA 70D

APG stocks the H3.5X102, a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 102 mm (4.016 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 109 mm (4.29 in). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

The material holds up against propane and butane, petroleum-based oils, and greases and lubricants. Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, 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). Exposure to ozone and direct sunlight or strong acids will shorten service life.

You will find this material specified across fluid power, general industrial maintenance, and hydraulic and pneumatic systems.

Order part number H3.5X102, sold individually. Unit weight is approximately 3.94 g. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.