3.5MM CS X 36MM ID BLACK BUNA 70D

Part number H3.5X36 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 36 mm (1.417 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 43 mm (1.69 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Expect good resistance to water, many alcohols, and propane and butane. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for reliable performance in both static and dynamic service, strong abrasion and tear resistance. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Applications involving automotive brake fluid or strong acids call for a different compound.

Maintenance and OEM teams specify it across hydraulic and pneumatic systems, construction equipment, and automotive.

Stocked as H3.5X36 and sold individually. Unit weight is approximately 1.458 g. Check the compound against your process media, pressure and temperature before committing to a design. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.