APG stocks the H90M5.7X59.2, a black Buna-N (Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 59.2 mm (2.331 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 70.6 mm (2.78 in). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
As a material, Buna-N (Nitrile) is valued for the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. This material stands up to many alcohols, propane and butane, and petroleum-based oils. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where automotive brake fluid or ketones are present.
Typical settings include automotive, fluid power, and construction equipment.
Stocked as H90M5.7X59.2 and sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. For a size or compound outside the standard catalog, APG can quote from a print or sample.
Description 5.7MM CS X 59.2MM ID BLACK BUNA 90D
Actual Outside Diameter 70.6 mm (2.78 inch)
Actual Cross Section 5.7 mm (0.224 inch)
Actual Inside Diameter 59.2 mm (2.331 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity