Shield
Gules (brick red), a pile Or between in base a fleur-de-lis and a tower of the last, in chief a pair of wings conjoined and elevated of the first.
Crest
From a wreath Or and Gules (brick red) a roundel nebuly per fess Argent and Celeste with a bezant bearing three barrulets Gules all in front of and enclosed within a wreath of laurel Vert.
Motto
BEST BY PERFORMANCE.
Shield
Brick red and golden yellow are associated with the Transportation Corps, the original allocation of the organization. The fleur-de-lis and tower represent the former battalion's honors for campaign service in Europe, World War II, for which it was awarded the Meritorious Unit Commendation "European Theater." The pile, a V-shaped heraldic partition, suggests the prior unit's reactivation in Vietnam. The V-shaped wings allude to the special aircraft maintenance and supply mission of the former battalion and its nickname, "The Flying Fifth." It is also indicative of the numerical designation of the parent unit.
Crest
The three barrulets represent the three Meritorious Unit Commendations; the barrulets on a yellow roundel are the colors of the flag of the Republic of Vietnam and represent the three unit decorations awarded by that country. Additionally, the nebuly edge of the roundel, a heraldic representation of clouds, and the white and light blue colors, suggesting the sky, allude tot he battalion's Vietnam service as an element of the 101st Airborne Division providing aircraft direct support maintenance. The wreath of laurel indicates excellence.
The coat of arms was originally approved for the 5th Transportation Battalion on 14 Jul 1969. It was redesignated for the 526th Support Battalion on 8 Dec 1993. On 10 Mar 1999 the coat of arms was amended to include a crest.