MIL-T-5021D, MILITARY SPECIFICATION: TEST, AIRCRAFT AND MISSILE WELDING OPERATORS QUALIFICATION (01-FEB-1969) [S/S BY MIL-STD-1595]

MIL-T-5021D, MILITARY SPECIFICATION: TEST, AIRCRAFT AND MISSILE WELDING OPERATORS QUALIFICATION (01-FEB-1969) [S/S BY MIL-STD-1595]., This specification covers the procedure for qualification of welders and welding operators engaged in the welding of aircraft, aircraft parts and accessories, missile, and missle parts and accessories, by fusion welding methods (see 6.2). This specification is not applicable to aircraft and missile ground equipment.