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This copy downloaded on 2015-05-12 15:14:59 -0500 by authorized user Fermi National Lab ASME B1.20.1-2013 Pipe Threads, General Purpose (Inch) 1 INTRODUCTION 1.1 Scope This Standard covers dimensions and gaging of pipe threads of the following series: NPT NPSC NPTR NPSM NPSL 1.2 Related Standard Hose coupling joints are ordinarily made with straight internal and external loose-fitting
