4MM CS X 304MM ID BLACK BUNA 70D

Ordered as H4X304, this is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 304 mm (11.969 in), a cross section of 4 mm (0.157 in), and an outside diameter of 312 mm (12.28 in). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.

The material holds up against water, hydraulic fluids, and petroleum-based oils. Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in polar solvents or ozone and direct sunlight.

Common environments for this compound include fluid power, automotive, and hydraulic and pneumatic systems.

Stocked as H4X304 and sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.