-453 BLACK BUNA 90D O-RING

Ordered as H90453, this is an AS568-453 black Buna-N (Nitrile) 90 Shore A O-Ring built to an inside diameter of 11.975 in (304.17 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 12.525 in (318.14 mm). The 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 strong abrasion and tear resistance, the most widely specified general-purpose sealing elastomer. Expect good resistance to greases and lubricants, petroleum-based oils, and water. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in polar solvents or ozone and direct sunlight.

Typical settings include construction equipment, fluid power, and hydraulic and pneumatic systems.

Order part number H90453, sold individually. Unit weight is approximately 48.1 g and nominal inside diameter is listed as 12 inch. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.