3MM CS X 45MM ID BLACK BUNA 70D

APG stocks the H3X45, a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 45 mm (1.772 in), a cross section of 3 mm (0.118 in), and an outside diameter of 51 mm (2.01 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Buna-N (Nitrile) is specified here for most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. The compound resists greases and lubricants, many alcohols, and propane and butane. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Exposure to strong acids or automotive brake fluid will shorten service life.

Maintenance and OEM teams specify it across general industrial maintenance, automotive, and fluid power.

Reference part number H3X45 when ordering; the item is sold individually. Unit weight is approximately 1.3105 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. 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.