The red crossbars in the lower section suggest the unit's basic mission of support to combat units, represented by the crossed swords in the red field above. The saltire, drawn from the cross of St. Andrew, is scarlet on a white field which represents purity and sacrifice.

The shoulder sleeve insignia was originally approved for the 167th Support Brigade on 15 July 1969.  It was redesignated for the 167th Support Command on 4 August 1976.  The insignia was redesignated effective 16 September 2006, for the 167th Sustainment Command with the description updated. The symbolism was amended 13 July 2023. (TIOH Dwg. No. A-1-522)

Scarlet and buff (gold) are the colors used for Support units, and scarlet and white represent purity and sacrifice. The colors blue and white refer to the origin of the unit as Infantry while the heraldic red mountain, suggested by "Red Mountain" in Birmingham denotes the homesite of the organization. The seven-pointed white star, taken from the flag of Australia, refers to the Australian administered island of New Guinea and the arrowhead denotes the unit's assault landing there during World War II. The Philippine machetes symbolize the Southern Philippine Campaign and the colors blue, white and red together represent the Republic of the Philippines Presidential Unit Citation awarded the unit.

The distinctive unit insignia was originally approved for the 167th Support Brigade on 12 June 1970.  It was redesignated for the 167th Support Command on 4 August 1976.  The insignia was redesignated effective 16 September 2006, for the 167th Sustainment Command with the description updated. The symbolism was amended 13 July 2023.