Formally, USAF rank abbreviations are not displayed with an ending period. Additionally, the USAF does not maintain a 'First Sergeant' rank common to other branches of American military service. Instead, the rank is denoted by the special addition of a diamond within the insignia and observed as a duty / job title. Similarly, the diamond is replaced by a star for the Chief Master Sergeant and Command Chief Master Sergeant ranks.
Note: The Five Star rank is generally reserved for wartime but can also be used as an honorary rank.
Considering a career in the United States Air Force? Then also consider United States Air Force aircraft currently in use for more information on available equipment.
Go back to the Military Ranks index page.