Per chevron reversed Gules (Crimson) and Azure, on a chevron reversed Or, a pair of open end wrenches jaws to chief Sable, between in chief a wildcat face jessant-de-lis of the third, and three mullets in base two and one Argent.
That for the regiments and separate battalions of the Tennessee Army National Guard: From a wreath Or and Gules (Crimson), upon a mount Vert a hickory tree Proper charged with three mullets one and two Argent.
THE BEST SERVES THE REST.
The color crimson is used for maintenance, the black and yellow for tank destroyers; they have been combined to indicate the former designations of the organization. The wildcat's head represents the shoulder sleeve insignia of the tank destroyer forces; the fleur-de-lis symbolizes European service and represents the organization's five battle honors - Normandy, Northern France, Rhineland, Central Europe, and Ardennes-Alsace during World War II. The stylized wrenches allude to the unit's previous mission of maintenance, while the blue circular scroll and three white stars are suggested by the State flag of Tennessee.
The crest is that of the Tennessee Army National Guard.
The coat of arms was originally approved for the 176th Maintenance Battalion on 24 February 1998. It was redesignated effective 1 September 2006, for the 176th Support Battalion with the symbolism of the shield updated.