410X Civil Engineering Officer

510X is the designator for a Civil Engineer Corps (CEC) Officer in the United States Navy.

CEC officers are: Professional engineers and architects Acquisitions specialists Seabee Combat Warfare Officers

The Navy uses the Navy Enlisted Classification (NEC) system to organize its jobs. The Army and Marines use the Military Occupational Specialty Code (MOS) and the Air Force uses the Air Force Specialty Code (AFSC).

Staff corps officers are specialists in career fields that are professions unto themselves, such as: Physicians, Lawyers, Civil engineers, Chaplains, Supply specialists.