Ordered as H3.6X30.8, this is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 30.8 mm (1.213 in), a cross section of 3.6 mm (0.142 in), and an outside diameter of 38 mm (1.5 in). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.
The compound resists greases and lubricants, water, and petroleum-based oils. Buna-N (Nitrile) is valued for low compression set under sustained load and an economical choice for high-volume maintenance programs. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ketones or automotive brake fluid are present.
Typical settings include general industrial maintenance, automotive, and agricultural equipment.
Order part number H3.6X30.8, sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation.
Description 3.6MM CS X 30.8MM ID BLACK BUNA 70D
Actual Outside Diameter 38 mm (1.5 inch)
Actual Cross Section 3.6 mm (0.142 inch)
Actual Inside Diameter 30.8 mm (1.213 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity