1.9MM CS X 7.8MM ID BLACK BUNA 90D

The H90M1.9X7.8 is a black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 7.8 mm (0.307 in), a cross section of 1.9 mm (0.075 in), and an outside diameter of 11.6 mm (0.46 in). This o-ring remains the most cost-effective sealing element available for pressurized assemblies. Supplementary detail from the product record: Metric O-RING, JIS P8.

Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, strong abrasion and tear resistance. It resists propane and butane, hydraulic fluids, and many alcohols. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving ozone and direct sunlight or automotive brake fluid call for a different compound.

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

This item is sold individually under part number H90M1.9X7.8. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.