Also known as a unit crest or DUI, a Distinctive Unit Insignia is worn by all Soldiers (except General Officers) in units that have been authorized to be issued the device. It is worn centered on the shoulder loops of the Army Green Service Uniform (AGSU) and the blue Army Service Uniform (ASU, Enlisted only) with the base of the insignia toward the outside shoulder seam. Enlisted personnel wear the insignia centered on a shoulder loop by placing it an equal distance from the outside shoulder seam to the outside edge of the shoulder-loop button. Officers (except Generals) wearing grade insignia on the shoulder loops center the DUI by placing it an equal distance between the inside edge of the grade insignia and the outside edge of the button.
More guidance on wear of the DUI is found in DA Pamphlet 670-1, Section 21-22, "Distinctive unit insignia" and 21–3(d) and (e), "Beret" and
"Garrison Cap," respectively.
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The 519th Maintenance Battalion Distinctive Unit Insignia, also called a DUI or unit crest, was approved on 18 July 1967. “READY WITH SERVICE,” the unit motto, encapsulates the core mission and enthusiasm for the success of the mission, which is symbolized by the wrench, a basic tool of maintenance. Combined with the star, the three wrenches refer to the four Companies under the unit’s command at the time the insignia was approved. By itself, the Star refers to the COSTAR concept embraced by the Army for its maintenance units at this time; the five points stand for Supply, Ordnance, Transportation, Medical, and Military Police services. The star is also a reference to the "Lone Star" state of Texas where it was activated.
As of Autumn 2023, there is no indication from readily available public sources that the 519th Maintenance Battalion is an active Army unit. We encourage visitors with information on the Battalion's lineage, history, or current status to email us so we can share that information with visitors to this Web site.