NPT-National Pipe Thread Chart Common American National Standard Pipe Taper Threads • NPT - National Pipe Thread Taper • NPTF - Dryseal American National Standard Taper Pipe Thread (ANSI B1.20.3) NPT Threads may be referred to as MPT (Male Pipe Thread), MNPT, or NPT(M) for male ...
Nominal Pipe Size Threads per Inch (Pitch) Thread Pitch Length, P Pitch Diameter at External Thread Start E0 Hand Tight Thread Engagement Length, L1 Diameter E1 Maximum Thread Engagement L2 Diameter E2 0.3125 1⁄16 27 0.03704 0.27118 0.160 0.28118 0.2611 0.28750 0.405 1⁄8 27 ...
Nominal Perfect External Threadsa Height of Thread, h Basic Minor Dia. at Small End of Pipe,b K0 Length,c L3 Dia., E3 Length, L5 Dia., E5 1⁄16 0.1111 0.26424 0.1285 0.3896 0.1870 0.28287 0.02963 0.2416 1⁄8 0.1111 0.35656 0.1285 0.3924 0.1898 0.37537 0.02963 0.3339 1⁄...
male pipe thread: The taper allows the the large-diameter of the male threads to be partial depth thds. for 3.47 thds., or 0.1285in. Outside Diameter: 0.405in. Taper Inches per Foot: nominal 3/4; max 7/8; min 11/16 Pitch dia. at small end: 0.36351in. Handtight engagement ...