This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A supplied with an inside diameter of 24.4 mm (0.961 in), a cross section of 3.1 mm (0.122 in), and an outside diameter of 30.6 mm (1.2 in), catalogued under part number H3.1X24.4. It compresses into its gland to block fluid or gas migration across a joint. This item is further identified as Metric O-RING, JIS G25.
Expect good resistance to hydraulic fluids, many alcohols, and propane and butane. That behavior comes from the compound itself: Buna-N (Nitrile) offers 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 ozone and direct sunlight or polar solvents will shorten service life.
Typical settings include hydraulic and pneumatic systems, automotive, and agricultural equipment.
Order part number H3.1X24.4, sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.
description 3.1MM CS X 24.4MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING, JIS G25
Actual_OD 30.6 mm (1.2 inch)
Actual_CS 3.1 mm (0.122 inch)
Actual_ID 24.4 mm (0.961 inch)
ProductCode Description O-Rings - Metric - Commodity