Ordered as H5.7X89.2, this is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 89.2 mm (3.512 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 100.6 mm (3.96 in). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.
It resists hydraulic fluids, many alcohols, and greases and lubricants. Buna-N (Nitrile) delivers 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). Verify compatibility before use with ketones or ozone and direct sunlight.
It sees regular use in construction equipment, agricultural equipment, and hydraulic and pneumatic systems.
Order part number H5.7X89.2, sold individually. Check the compound against your process media, pressure and temperature before committing to a design.
Description 5.7MM CS X 89.2MM ID BLACK BUNA 70D
Actual Outside Diameter 100.6 mm (3.96 inch)
Actual Cross Section 5.7 mm (0.224 inch)
Actual Inside Diameter 89.2 mm (3.512 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity