Pezentul standard stabile?te toleran?ele de fabrica?ie ?i uzur? precum ?i formele ?i execu?iile calibrelor gi contracalibrelor utilizate la verificarea iiletului metric conic STAS 6423-81.
STAS 7456/1-1983 history
1983STAS 7456/1-1983 GAUGES AND REFERENCE GAUGES FOR METRIC TAPERED SCREW THREAD Manufacturing and wear tolerances