Insignia Description
A gold color metal and enamel device 1 1/8 inches (2.86cm) in height overall, consisting of a shield blazoned: Buff, three chevronels Sable, overall a double-warded key bow to base Or, bow detailed Celeste. Above the shield a black scroll inscribed "PROUD TO PUMP" in gold.

Symbolism
Buff and light blue are the colors traditionally associated with Quartermaster units. Black alludes to oil and the unit's primary mission, supply and operating the petroleum pipeline in Okinawa. The chevronels represent support and connote movement. The key refers to supply. The bow bears a stylized chrysanthemum, adapted from the Imperial Seal of Japan, and signifies the unit's location.

History
The distinctive unit insignia was approved on 2 Jun 1988.

Source: The US Army Institute of Heraldry