3.1MM CS X 119.4MM ID BLACK BUNA 90D

This o-ring is supplied in black Buna-N (Nitrile) 90 Shore A supplied with an inside diameter of 119.4 mm (4.701 in), a cross section of 3.1 mm (0.122 in), and an outside diameter of 125.6 mm (4.94 in), catalogued under part number H90M3.1X119.4. It remains the most cost-effective sealing element available for pressurized assemblies. Source specification: Metric O-RING, JIS G120.

As a material, Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. The material holds up against petroleum-based oils, greases and lubricants, and water. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with automotive brake fluid or strong acids.

Maintenance and OEM teams specify it across automotive, fluid power, and general industrial maintenance.

Stocked as H90M3.1X119.4 and sold individually. Unit weight is approximately 4.06 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.