U.S. Military Rank Insignia U.S. Department of Defense. An Army sergeant, an Air Force staff sergeant and a Marine corporal are considered NCO ranks. The Navy NCO equivalent, petty officer, is achieved at the rank of petty officer third class. E-5...

U.S. Military Rank Insignia U.S. Department of Defense
U.S. Military Rank Insignia U.S. Department of Defense from mormonsoldier.files.wordpress.com

There are 13 enlisted Army ranks: private, private second class, private first class, specialist, corporal, sergeant, staff sergeant, sergeant first class, master sergeant, first sergeant,...