5.7MM CS X 119.3MM ID BLACK BUNA 90D

The H90M5.7X119.3 is a black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 119.3 mm (4.697 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 130.7 mm (5.15 in). This o-ring compresses into its gland to block fluid or gas migration across a joint.

As a material, Buna-N (Nitrile) delivers the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. Expect good resistance to many alcohols, water, and propane and butane. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where strong acids or ozone and direct sunlight are present.

Maintenance and OEM teams specify it across fluid power, agricultural equipment, and hydraulic and pneumatic systems.

Order part number H90M5.7X119.3, sold individually. Review your operating media and conditions against this specification before installation.