2.5MM CS X 18MM ID BLACK BUNA 70D

APG stocks the H2.5X18, a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 18 mm (0.709 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 23 mm (0.91 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

It resists petroleum-based oils, hydraulic fluids, and propane and butane. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for low compression set under sustained load and the most widely specified general-purpose sealing elastomer. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Exposure to polar solvents or automotive brake fluid will shorten service life.

It sees regular use in fluid power, automotive, and general industrial maintenance.

H2.5X18 ships individually. Unit weight is approximately 0.0009 lb. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.