The H3X37.2 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 37.2 mm (1.465 in), a cross section of 3 mm (0.118 in), and an outside diameter of 43.2 mm (1.7 in). This o-ring remains the most cost-effective sealing element available for pressurized assemblies.
Buna-N (Nitrile) offers an economical choice for high-volume maintenance programs and low compression set under sustained load. It resists many alcohols, greases and lubricants, and water. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where strong acids or ketones are present.
It sees regular use in general industrial maintenance, construction equipment, and hydraulic and pneumatic systems.
H3X37.2 ships individually. Review your operating media and conditions against this specification before installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
Description 3MM CS X 37.2MM ID BLACK BUNA 70D
Actual Outside Diameter 43.2 mm (1.7 inch)
Actual Cross Section 3 mm (0.118 inch)
Actual Inside Diameter 37.2 mm (1.465 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity