SHIELD
Per chevron Argent and Vert charged with chevronelles of five from the top Sable, Silver Gray, Celeste, Or and Silver Gray, surmounted by a chevron rompu Azure, overall in base a Spearhead of the first and a chief per pine needle of the second.
CREST
Issuing from a torse Argent and Vert an image of Mount Katahdin with rising sun as seen from Millinocket camp Proper with two axes per saltire in the foreground Proper.
SUPPORTERS
Behind the shield a United States Army officer sword and a Marine Corps officer mameluke in saltire, points downward Proper.
MOTTO
A Red scroll turned Black inscribed "LABOR INGENIUM PERSEVERANTIA in White letters.
SEAL
The coat of arms as blazoned in full color upon a white oval enclosed by a dark blue collar edged on the outside with a gold rope and bearing the inscription "USNS MILLINOCKET" at top and "JHSV 3" at base in gold.
SHIELD
The colors of the shield, green and white, are familiar colors to the State of Maine, representing the snowy winters and the pine forests. The chevronelle colors replicate the stack colors of the Military Sealift Command's fleet and signify that USNS MILLINOCKET is part of that fleet. The chevron rompu is dark blue, a color taken from the field color of the State of Maine's flag. The shape alludes to the catamaran hulls of the Joint High Speed Vessels. The white Spearhead represents speed and also signifies that USNS MILLINOCKET is one of the "Spearhead Class" of High Speed Vessels. The pine needle shaped chief honors the State of Maine as the Pine Tree State.
CREST
The background image is familiar to the area. Mount Katahdin is the tallest peak in the State of Maine and also is the northern terminus of the Appalachian Trail. The rising sun recalls the image of the town seal. The crossed axes describe the teamwork it took to build the town.
SUPPORTERS
The swords symbolize cooperation and teamwork and the JHSV's capability to transport both U.S. Army and U.S. Marine Corps personnel and their military vehicles.
MOTTO
Red is the color signifying strength, boldness and hardiness, reflective of the motto, "LABOR INGENIUM PERSEVERANTIA," which translates to "Hard Work, Ingenuity and Perseverance."