1MM CS X 5MM ID BLACK BUNA 90D

APG stocks the H90M1X5, a black Buna-N (Nitrile) 90 Shore A O-Ring with an inside diameter of 5 mm (0.197 in), a cross section of 1 mm (0.039 in), and an outside diameter of 7 mm (0.28 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

This material stands up to propane and butane, many alcohols, and greases and lubricants. That behavior comes from the compound itself: Buna-N (Nitrile) offers 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). Exposure to ozone and direct sunlight or polar solvents will shorten service life.

You will find this material specified across construction equipment, hydraulic and pneumatic systems, and automotive.

Order part number H90M1X5, sold individually. Unit weight is approximately 0.058 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.