1MM CS X 3.7MM ID BLACK BUNA 70D

APG stocks the H1X3.7, a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 3.7 mm (0.146 in), a cross section of 1 mm (0.039 in), and an outside diameter of 5.7 mm (0.22 in). An o-ring compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) delivers an economical choice for high-volume maintenance programs and low compression set under sustained load. This material stands up to hydraulic fluids, petroleum-based oils, and greases and lubricants. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in polar solvents or strong acids.

Typical settings include general industrial maintenance, construction equipment, and fluid power.

Reference part number H1X3.7 when ordering; the item is sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. For a size or compound outside the standard catalog, APG can quote from a print or sample.