The H3X18.2 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 18.2 mm (0.717 in), a cross section of 3 mm (0.118 in), and an outside diameter of 24.2 mm (0.95 in). This o-ring remains the most cost-effective sealing element available for pressurized assemblies.
The compound resists many alcohols, petroleum-based oils, and water. Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs, 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 automotive brake fluid or strong acids.
It sees regular use in fluid power, hydraulic and pneumatic systems, and agricultural equipment.
Order part number H3X18.2, sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation.
Description 3MM CS X 18.2MM ID BLACK BUNA 70D
Actual Outside Diameter 24.2 mm (0.95 inch)
Actual Cross Section 3 mm (0.118 inch)
Actual Inside Diameter 18.2 mm (0.717 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity