Shield
Gules (Crimson), on a bend between four welks two and two Or, a horseshoe surmounted by a farrier's hammer and a ball peen hammer in saltire palewise Sable.
Crest
On a wreath of the colors Or and Gules (Crimson) a lozenge of the second debruised in base by an isosceles triangle Azure, both fimbriated of the first and surmounted overall an oriental dragon passant of the like in front of a torii gate Sable bearing a Philippine sun Or.
Motto
EX ANIMO (Willingly).
Shield
Crimson and yellow are the colors for the Ordnance Corps. The colors yellow and black, the horseshoe, and the hammers symbolize long service with the Cavalry and transition from horse Cavalry to mechanized Cavalry. The sea shells represent the four battle honors awarded the organization for service in the Pacific.
Crest
The crest commemorates through the symbols of sun, torii gate and dragon the areas of the Philippines, Korea and Vietnam in which the unit served with distinction. The triangle and lozenge background is symbolic of stability and victory and the colors blue and red refer to the Presidential and Meritorious Unit Citations.
The coat of arms was originally approved for the 27th Ordnance Battalion on 13 July 1954. It was redesignated for the 27th Maintenance Battalion and amended to correct the wording of the blazon on 23 September 1963. It was amended to add a crest on 22 May 1973. The insignia was redesignated for the 27th Support Battalion on 22 April 1987.