National pipe thread

American National Standard Pipe Thread standards, often called national pipe thread standards for short, are United States national <a href="/facts/Technical_standard/P4orT1SM">technical standards</a> for <a href="/facts/Screw_thread/dqGzDfHv">screw threads</a> used on <a href="/facts/Threaded_pipe/myQJrje6">threaded pipes</a> and <a href="/facts/Piping_and_plumbing_fitting/8saV82HD">pipe fittings</a>. They include both <a href="/facts/Screw_thread/dqGzDfHv">tapered</a> and straight thread series for various purposes, including rigidity, <a href="/facts/Pressure/eyc37GRG">pressure</a>-tight sealing, or both. The types are named with a full name and an abbreviation, such as NPT, NPS, NPTF, or NPSC.
MIP is an abbreviation for male iron pipe, and FIP is an abbreviation for female iron pipe.
Outside North America, some US pipe thread sizes are widely used, as well as many <a href="/facts/British_Standard_Pipe/V3Y7kbMh">British Standard Pipe</a> threads and <a href="/facts/International_Organization_for_Standardization/IacYR7Yg">ISO</a> 7–1, 7–2, 228–1, and 228-2 threads.

National pipe thread open-in-new

National pipe thread