3MM CS X 137MM ID BLACK BUNA 70D

This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A supplied with an inside diameter of 137 mm (5.394 in), a cross section of 3 mm (0.118 in), and an outside diameter of 143 mm (5.63 in), catalogued under part number H3X137. It compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs and low compression set under sustained load. It resists many alcohols, hydraulic fluids, and propane and butane. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in automotive brake fluid or ozone and direct sunlight.

Maintenance and OEM teams specify it across general industrial maintenance, agricultural equipment, and construction equipment.

This item is sold individually under part number H3X137. Unit weight is approximately 3.875 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.