Straight Male NPT x Male NPT hydraulic adapters are essential fittings designed to create secure connections for fluid and gas transfer in hydraulic systems. Utilizing the National Pipe Taper (NPT) standard, these adapters feature tapered threads that provide a reliable seal through thread deformation, forming a strong metal-to-metal connection when tightened. The nominal pipe size can be easily identified by measuring the thread diameter and subtracting 1/4". NPT connections have been a trusted choice for over 100 years in the U.S. and are widely used in various applications. However, these adapters are ideal for single assembly applications and are not recommended for frequent disassembly, as repeated use can lead to wear on the threads. These reliable NPT adapters are perfect for professionals seeking efficient and durable hydraulic solutions to ensure optimal performance in fluid transfer systems.