3.5MM CS X 34MM ID BLACK BUNA 90D

APG stocks the H90M3.5X34, a black Buna-N (Nitrile) 90 Shore A O-Ring with an inside diameter of 34 mm (1.339 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 41 mm (1.61 in). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

The material holds up against propane and butane, greases and lubricants, and hydraulic fluids. That behavior comes from the compound itself: Buna-N (Nitrile) delivers reliable performance in both static and dynamic service, strong abrasion and tear resistance. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving strong acids or polar solvents call for a different compound.

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

Order part number H90M3.5X34, sold individually. Unit weight is approximately 1.464 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.