The Series 9636S Male Heavy Duty DIN x Female NPT hydraulic adapters are made from carbon steel and are designed to create a secure connection between DIN and NPT fittings in hydraulic systems. The male DIN side features a 24° tapered throat angle, and when a tube nut is tightened over the metric threads, it compresses a ferrule or cutting ring to form a tight seal. These adapters come with a washer and O-ring for enhanced sealing performance. DIN fittings are categorized into three pressure classes: Extra Light Duty (LL), Light Duty (L), and Heavy Duty (S), with this model designed for heavy-duty applications. NPT connections use thread deformation to create a metal-to-metal seal, commonly used for fluid and gas transfer in U.S. standard pipes. This type of connection is perfect for single-use applications but not ideal for frequent assembly or disassembly, as repeated use can wear out the threads. These DIN-to-NPT adapters offer a reliable solution for industrial fluid power systems, providing strength, durability, and ease of assembly.