-375 BLACK BUNA 90D O-RING

This o-ring is supplied in AS568-375 black Buna-N (Nitrile) 90 Shore A measuring an inside diameter of 9.475 in (240.67 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 9.895 in (251.33 mm), catalogued under part number H90375. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. The compound resists propane and butane, greases and lubricants, and petroleum-based oils. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Exposure to strong acids or ozone and direct sunlight will shorten service life.

You will find this material specified across automotive, fluid power, and construction equipment.

This item is sold individually under part number H90375. Unit weight is approximately 24.22 g and nominal inside diameter is listed as 9 1/2 inch. 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.