The Coat of Arms of the United States on a one inch disk, all gold color metal.
The Coat of Arms was first authorized for wear as a collar insignia by officers not assigned to a branch by Ch3, Special Regulation 41, dated 8 March 1918. It was authorized for wear and designated as the insignia for the Detached Enlisted Men's List by Cir 72 dated 16 March 1921. The insignia was discontinued as an officer collar insignia in 1948. The name was changed to "Unassigned to Branch" for enlisted personnel by SR 600-60-1 dated 8 Apr 53. The name was changed to Branch Immaterial in 1976 and Command Sergeants Major were the only enlisted personnel to wear the insignia. The collar insignia was subsequently changed to "Command Sergeant Major" by AR 670-1 dated 1 Sep 92.