Gyronny of eight Crimson and Or, a fess Horizon Blue charged with a sea lion holding in dexter paw a sword of the second, in chief a fleur-de-lis of the third.
That for the regiments and separate battalions of the Indiana National Guard: On a wreath of the colors Or and Crimson, a demi-lion rampant Argent, holding in dexter paw a laurel branch Vert.
SUSTINEMUS ARMA (We Sustain the Arms).
Crimson and yellow are colors traditionally associated with the Ordnance Corps, the original allocation of the unit. The color "horizon blue," taken from the chief of the coat of arms of the former 139th Field Artillery Regiment, commemorates descent of the parent unit from that organization. The motto of Indiana, "The Crossroads of America." is depicted by the gyronny partition lines to symbolize the "Hoosier" organization. The fleur-de-lis indicates the original battalion's World War I campaign honor. The sea lion, taken from the coat of arms of Manila, represents World War II Pacific honors.
The coat of arms was originally approved for the 738th Ordnance Battalion on 19 January 1953. It was redesignated for the 738th Maintenance Battalion on 15 August 1963. On 17 November 1992, the coat of arms was redesignated with symbolism revised for the 738th Support Battalion. The coat of arms was redesignated for the 190th Quartermaster Battalion on 2 June 2005.