-359 BLACK BUNA 90D O-RING

APG stocks the H90359, an AS568-359 black Buna-N (Nitrile) 90 Shore A O-Ring built to an inside diameter of 5.725 in (145.42 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 6.145 in (156.08 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. Expect good resistance to propane and butane, hydraulic fluids, and greases and lubricants. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving automotive brake fluid or ozone and direct sunlight call for a different compound.

It sees regular use in construction equipment, automotive, and general industrial maintenance.

Order part number H90359, sold individually. Unit weight is approximately 14.739 g and nominal inside diameter is listed as 5 3/4 inch. Check the compound against your process media, pressure and temperature before committing to a design.