U.S. Air Force enlisted rank insignia

Chief Master Sergeant of the Air Force		First Sergeant	Command Chief Master Sergeant
Chief Master Sergeant E-9
Senior Master Sergeant E-8
Master Sergeant E-7
Technical Sergeant E-6
Staff Sergeant E-5
Senior Airman E-4
Airman First Class E-3
Airman E-2
Airman Basic E-1	no insignia worn

This chart represents the U.S. Air Force enlisted rank insignia.

While all Air Force military personnel are referred to as Airmen, it can specifically refer to the pay grades of E-1 through E-4 which are below the level of non-commissioned officers (NCOs). Above the paygrade of E-4 (E-5 through E-9) all ranks fall into the category of NCO and are further subdivided into Junior NCOs (E-5 & E-6) and Senior NCOs (E-7 through E-9).