8.4MM CS X 374.5MM ID BLACK BUNA 70D

APG stocks the H8.4X374.5, a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 374.5 mm (14.744 in), a cross section of 8.4 mm (0.331 in), and an outside diameter of 391.3 mm (15.41 in). An o-ring delivers dependable bidirectional sealing in a compact groove envelope. Supplementary detail from the product record: Metric O-RING, JIS P375.

The compound resists hydraulic fluids, propane and butane, and greases and lubricants. That behavior comes from the compound itself: Buna-N (Nitrile) is widely chosen 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).

It sees regular use in hydraulic and pneumatic systems, fluid power, and agricultural equipment.

Reference part number H8.4X374.5 when ordering; the item is sold individually. Unit weight is approximately 81.803 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.