MIL MIL-S-24149/1D

MIL MIL-S-24149/1D STUD, WELDING, AND ARC SHIELDS (FERRULES); TYPE I, CLASS 1, 2, 3, AND TYPE II, CLASS 1, 4, 5, 5A, 6, CARBON STEEL, FOR DIRECT ENERGY, ARC WELDING (SUPERSEDING MIL-S-24149/1C)

standard by Military Specifications and Standards, 06/10/1988