The H2X19 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 19 mm (0.748 in), a cross section of 2 mm (0.079 in), and an outside diameter of 23 mm (0.91 in). This o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
As a material, Buna-N (Nitrile) delivers an economical choice for high-volume maintenance programs and low compression set under sustained load. The material holds up against hydraulic fluids, petroleum-based oils, and propane and butane. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with automotive brake fluid or ketones.
You will find this material specified across hydraulic and pneumatic systems, fluid power, and general industrial maintenance.
Stocked as H2X19 and sold individually. Unit weight is approximately 0.253 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.
Description 2MM CS X 19MM ID BLACK BUNA 70D
Actual Outside Diameter 23 mm (0.91 inch)
Actual Cross Section 2 mm (0.079 inch)
Actual Inside Diameter 19 mm (0.748 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity