FNPT stands for Female National Pipe Thread. Suggest new definition. This definition appears somewhat frequently and is found in the following Acronym Finder categories: Business, finance, etc.What is diffrent between PT, NPT and FPT thread?
NPT, national pipe threads, and FPT, female pipe threads, are terms used regarding U.S. pipe standards for tapered threads. NPT are common threads used for general purposes, while FPT are a type of NPT. NPTs and FPTs are used to join pipes and fittings for all types of general purposes.What is FNPT PVC?
PVC Information. FPT (or FNPT) is where the threads are on the inside of a fitting. This allows a MPT, or Male Pipe Thread part to screw into the female piece. All of our FPT parts are in NPT, National Pipe Thread, which is the type of threading used in the USA.