3.5MM CS X 25.7MM ID BLACK BUNA 90D

The H90M3.5X25.7 is a black Buna-N (Nitrile) 90 Shore A O-Ring with an inside diameter of 25.7 mm (1.012 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 32.7 mm (1.29 in). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces. The catalog record notes: Metric O-RING, JIS P26.

It resists propane and butane, hydraulic fluids, and water. Buna-N (Nitrile) is widely chosen for reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ketones or polar solvents are present.

Typical settings include fluid power, hydraulic and pneumatic systems, and construction equipment.

This item is sold individually under part number H90M3.5X25.7. Check the compound against your process media, pressure and temperature before committing to a design.