The Series 9635S Male Light Duty DIN x Female NPT hydraulic adapters are designed to provide 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 create a strong seal. These adapters come with a washer and O-ring to further enhance sealing. DIN fittings are part of a three-class pressure rating system: Extra Light Duty (LL), Light Duty (L), and Heavy Duty (S). NPT (National Pipe Taper) threads are used for fluid and gas transfer and seal by thread deformation, providing a durable connection ideal for single-use applications. However, frequent disassembly could wear out the threads. This combination of DIN and NPT fittings ensures a reliable connection for fluid power systems, especially in industries that require secure, durable connections with easy assembly.