AS71051 Pipe Threads, Taper, Aeronautical National Form, Symbol Anpt - Design and Inspection Standard

This document establishes the requirements for Aeronautical National Form (ANPT) pipe threads, gages, and gaging methos for determining conformity of aeronautical taper pipe threads to this standard.

Threads and gages covered by this standard are intended for use on pipe, plugs, fittings, and similar devices in aeronautical components and equipment requiring a sealed thread joint, and where straight threads and gaskets or O-rings are inadequate.