APG stocks the H8X310, a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 310 mm (12.205 in), a cross section of 8 mm (0.315 in), and an outside diameter of 326 mm (12.83 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
Buna-N (Nitrile) is specified here for most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. The material holds up against greases and lubricants, petroleum-based oils, and propane and butane. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where strong acids or automotive brake fluid are present.
Maintenance and OEM teams specify it across agricultural equipment, hydraulic and pneumatic systems, and automotive.
This item is sold individually under part number H8X310. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
Description 8MM CS X 310MM ID BLACK BUNA 70D
Actual Outside Diameter 326 mm (12.83 inch)
Actual Cross Section 8 mm (0.315 inch)
Actual Inside Diameter 310 mm (12.205 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity