tsgt USAF noncom USAF NCO Noncom: Abbr USAF E-6 U.S.A.F. noncom USAF five-striper U.S.A.F. N.C.O Commanding NCO in the Air Force U.S.A.F. NCO Air Force noncom: Abbr. Air Force NCO Cpl.'s superior N.C.O. Certain NCO USAF rank