5.7MM CS X 39.2MM ID BLACK BUNA 90D

Ordered as H90M5.7X39.2, this is a black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 39.2 mm (1.543 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 50.6 mm (1.99 in). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.

As a material, Buna-N (Nitrile) offers the most widely specified general-purpose sealing elastomer and low compression set under sustained load. It resists water, propane and butane, and greases and lubricants. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It is not the right choice where polar solvents or strong acids are present.

Common environments for this compound include general industrial maintenance, fluid power, and hydraulic and pneumatic systems.

This item is sold individually under part number H90M5.7X39.2. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.