8MM CS X 190MM ID BLACK BUNA 70D

APG stocks the H8X190, a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 190 mm (7.48 in), a cross section of 8 mm (0.315 in), and an outside diameter of 206 mm (8.11 in). An o-ring compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs, strong abrasion and tear resistance. It resists water, many alcohols, and hydraulic fluids. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Verify compatibility before use with strong acids or automotive brake fluid.

Maintenance and OEM teams specify it across hydraulic and pneumatic systems, fluid power, and general industrial maintenance.

Reference part number H8X190 when ordering; the item is sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.