Military Ranks: Everything You Need to Know Military.com. Rank: Military Rank Abbreviation: Air Force Enlisted Ranks E-1: Airman Basic: AB: E-2: Airman: Amn: E-3: Airman First Class: A1C: E-4: Senior Airman: SrA: Air Force Non-Commissioned Officer (NCO.
Sergeant First Class (SFC) Marine Corps Gunnery Sergeant (GySgt) Navy Chief Petty Officer ** (CPO) Air Force Master Sergeant (MSgt) First Sergeant Space Force Master.