1.8MM CS X 11.8MM ID BLACK BUNA 70D

Ordered as H1.8X11.8, this is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 11.8 mm (0.465 in), a cross section of 1.8 mm (0.071 in), and an outside diameter of 15.4 mm (0.61 in). The o-ring compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) is specified for low compression set under sustained load, reliable performance in both static and dynamic service. It resists water, petroleum-based oils, and hydraulic fluids. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to automotive brake fluid or ketones will shorten service life.

Maintenance and OEM teams specify it across fluid power, hydraulic and pneumatic systems, and automotive.

Order part number H1.8X11.8, sold individually. Unit weight is approximately 0.1388 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. 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.