Air Force Service Cap Device - Band E-3 Lance Corporal They perform the functions of

They perform the functions of a computer system analyst

Criteria: Worn by Aviation Anti-Submarine Warfare Operator with ranks from Petty Officer 3rd Class (E-4) to Petty Officer 1st Class (E-6)

It is normally worn above the ribbons or medals over the left breast pocket

Selected Marine Corps Reserve Anodized Medal

Air Force Service Cap Device - Band E-3 Lance Corporal They perform the functions ofUnited States Air Force Service Cap Device Band Criteria: For United States Air Force service caps, a large, silver eagle device is worn. For enlisted men, a smaller version of the officer's insignia is worn enclosed in a ring. The cap device is similar to that worn by soldiers as the U. S. Air Force was once part of the U. S. Army.