The Marine Corps MOS 6276 is for Fixed-Wing Aircraft Crew Masters for the KC-130. These crew masters are essential aircrew who perform duties related to the operation and maintenance of the KC-130 aircraft.

The MOS 6276 is part of the 62 Field, which is for Fixed-Wing Aircraft Maintenance/Mechanic. Other MOSs in this field include: 6173 Helicopter Crew Chief, CH-53 6174 Helicopter Crew Chief, UH-1N/Y 6176 Tiltrotor Crew Chief, MV-22

Some careers similar to the Marine Corps MOS code 6216 include: Aerospace Engineering & Operations Technologists & Technicians Aircraft Mechanics & Service Technicians Aircraft Structure, Surfaces, Rigging, & Systems Assemblers Aviation Inspectors