Hex Pipe Locknuts | FNPT x NPSM Swivel | G 1/2 B x 1/2 in. Male National Pipe Thread (MNPT) with 1/4 in. Female National Pipe Thread (FNPT) | Gasketed | MIP Threaded | National Pipe Thread (NPT), Flange | Push-to-Connect | Spigot x FIP | Threaded MIP