3MM CS X 27MM ID BLACK BUNA 90D

Ordered as H90M3X27, this is a black Buna-N (Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 27 mm (1.063 in), a cross section of 3 mm (0.118 in), and an outside diameter of 33 mm (1.3 in). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.

This material stands up to propane and butane, hydraulic fluids, and greases and lubricants. That behavior comes from the compound itself: Buna-N (Nitrile) is known for low compression set under sustained load and the most widely specified general-purpose sealing elastomer. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Exposure to ketones or polar solvents will shorten service life.

It sees regular use in hydraulic and pneumatic systems, agricultural equipment, and fluid power.

H90M3X27 ships individually. Unit weight is approximately 0.88 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.