The Series 6505 Straight Male NPT x Female JIC Swivel hydraulic adapters, made from durable carbon steel, are essential components designed to facilitate secure fluid connections in hydraulic systems. Featuring a male NPT (National Pipe Taper) end, these adapters utilize tapered threads to effectively seal pipes for fluid and gas transfer, relying on thread deformation for a strong metal-to-metal connection. The female end incorporates a JIC (Joint Industry Council) fitting, which is defined by SAE J514, featuring a 37-degree flare seating surface and parallel threads. The seal is established by contact between the male flared seat and the female coned seat, creating a robust mechanical connection. While NPT connections are ideal for single assembly applications, they are not recommended for frequent disassembly due to potential wear on the threads. The nominal pipe size can be determined by measuring the thread diameter and subtracting 1/4". These adapters are ideal for professionals seeking reliable and efficient hydraulic solutions across various applications.