4MM CS X 34MM ID BLACK BUNA 70D

Part number H4X34 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 34 mm (1.339 in), a cross section of 4 mm (0.157 in), and an outside diameter of 42 mm (1.65 in). An o-ring compresses into its gland to block fluid or gas migration across a joint.

As a material, Buna-N (Nitrile) is widely chosen for the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. This material stands up to petroleum-based oils, propane and butane, and many alcohols. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.

Maintenance and OEM teams specify it across hydraulic and pneumatic systems, agricultural equipment, and fluid power.

Order part number H4X34, sold individually. Unit weight is approximately 1.832 g. 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.