Our Series 2405 Straight Male JIC x Female NPT Rigid 1-Piece Stainless Steel hydraulic adapters are vital components designed for effective fluid transfer in hydraulic systems. Constructed from high-quality stainless steel, these adapters feature a male JIC end that connects securely to a female NPT fitting. JIC (Joint Industry Council) fittings, defined by SAE J514, are compression fittings with a 37-degree flare seating surface and parallel threads, commonly found in fluid power systems for their reliability and durability. The seal is achieved by establishing contact between the male flared seat and the female coned seat, creating a strong mechanical connection. On the other hand, NPT (National Pipe Taper) connections utilize tapered threads to effectively seal pipes for fluid and gas transfer. The nominal pipe size can be identified by measuring the thread diameter and subtracting 1/4". While NPT connections provide a metal-to-metal sealing design ideal for single assembly applications, they are not recommended for frequent disassembly due to potential thread wear. The Series 2405 stainless steel adapters enhance system performance and are an excellent choice for professionals seeking reliable hydraulic solutions.