A silver color metal and enamel device 1 1/8 inches (2.86 cm) in width overall, consisting of a disc wavy of six, blue and silver, upon an antique key, wards down, and on each side of the bow the head of a bison, all silver, facing to dexter and sinister, all above a buff motto scroll inscribed "STRENGTH SPIRIT SERVICE" in silver letters.
Buff and blue are the colors traditionally associated with the Quartermaster Corps, the original designation of the unit. The location of the unit and its former mission, to store and supply water, are symbolized by the wavy disc, which refers also to the local Devils Lake and other water resources. The bison represents the Plains Indians of the region, who revered the buffalos' strength and steadfastness and valued them as a source of food and clothing. The key stands for distribution and storage.
The distinctive unit insignia was originally approved for the 136th Quartermaster Battalion on 14 January 1992. It was redesignated effective 1 September 2008, for the 136th Support Battalion with symbolism updated.