Gules (Crimson) four fusils conjoined in fess Or, overall a bar Azure.
On a wreath of the colors Or and Gules (Crimson), a joint of bamboo Proper with five leaves issuing from center Vert and charged with three narrow barrulets Gules between and surmounting two lightning flashes pilewise of the first.
SERVICE TO THE LINE.
Crimson and gold are colors traditionally associated with Ordnance units. The fusil alludes to the flint used in flint locks and thus to Ordnance and its mission-the supply, maintenance, and salvage of weapons and ammunition. The four fusils are additionally indicative of the organization's four battle honors awarded in World War II. The blue bar is for combat service in Korea.
The two lightning flashes, together with the bamboo and the three red bands taken from the flag of the Republic of Vietnam, refer to the Battalion's service in Korea and Vietnam as an element of the 25th Infantry Division. The five leaves and the two flashes also allude numerically to the seven decorations awarded during both campaigns.
The coat of arms was originally approved for the 725th Ordnance Maintenance Battalion on 3 December 1953 and the designation was later corrected to the 725th Ordnance Battalion. It was redesignated for the 725th Maintenance Battalion on 6 September 1963. The insignia was amended to add a crest on 13 October 1972. It was redesignated for the 725th Support Battalion with the symbolism revised on 20 March 1991.