The 402nd Field Artillery Brigade Shoulder Sleeve Insignia (SSI) was originally approved for the 402nd Brigade (Training) on 18 April 1985 and was redesignated for the 402nd Field Artillery Brigade (with an updated description) on 11 January 2007. It became obsolete when the 402nd FA Brigade was merged into the 5th Armored Brigade, First Army Division West in 2015.
At the center of the insignia is a red shield trimmed in white, an allusion to Field Artillery as well as to the mortal danger inherent in armed combat and the simulation of combat during the training exercises conducted by the Brigade.
Behind the shield is a flaming torch with a pair of crossed swords superimposed on it; the torch symbolizes the illumination provided by education and instruction, while the crossed swords and shield together allude to the real-life application of the principles taught by the Brigade. The importance of the Brigade's role in preparing new cadres of Field Artillerists is emphasized by the Brigade's motto, "Train To Excellence."