This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 25.2 mm (0.992 in), a cross section of 3 mm (0.118 in), and an outside diameter of 31.2 mm (1.23 in), catalogued under part number H3X25.2. It creates a positive seal at flange, piston and rod interfaces without added hardware.
Expect good resistance to water, hydraulic fluids, and many alcohols. Buna-N (Nitrile) is specified for the most widely specified general-purpose sealing elastomer and low compression set under sustained load. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to strong acids or ketones will shorten service life.
You will find this material specified across fluid power, automotive, and hydraulic and pneumatic systems.
H3X25.2 ships individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.
Description 3MM CS X 25.2MM ID BLACK BUNA 70D
Actual Outside Diameter 31.2 mm (1.23 inch)
Actual Cross Section 3 mm (0.118 inch)
Actual Inside Diameter 25.2 mm (0.992 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity