APG stocks the H1.6X8.1, a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 8.1 mm (0.319 in), a cross section of 1.6 mm (0.063 in), and an outside diameter of 11.3 mm (0.44 in). An o-ring compresses into its gland to block fluid or gas migration across a joint.
As a material, Buna-N (Nitrile) offers an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. This material stands up to hydraulic fluids, propane and butane, and water. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving ketones or ozone and direct sunlight call for a different compound.
It sees regular use in hydraulic and pneumatic systems, fluid power, and construction equipment.
H1.6X8.1 ships individually. Unit weight is approximately 0.0001 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Description 1.6MM CS X 8.1MM ID BLACK BUNA 70D
Actual Outside Diameter 11.3 mm (0.44 inch)
Actual Cross Section 1.6 mm (0.063 inch)
Actual Inside Diameter 8.1 mm (0.319 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity