3.1MM CS X 64.4MM ID BLACK BUNA 90D

The H90M3.1X64.4 is a black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 64.4 mm (2.535 in), a cross section of 3.1 mm (0.122 in), and an outside diameter of 70.6 mm (2.78 in). This o-ring remains the most cost-effective sealing element available for pressurized assemblies. Additional detail on this item: Metric O-RING, JIS G65.

Buna-N (Nitrile) is specified here for strong abrasion and tear resistance, economical choice for high-volume maintenance programs. The compound resists many alcohols, petroleum-based oils, and water. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Exposure to ketones or automotive brake fluid will shorten service life.

Common environments for this compound include fluid power, hydraulic and pneumatic systems, and agricultural equipment.

This item is sold individually under part number H90M3.1X64.4. Unit weight is approximately 2.2789 g. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.