| 1 | USQA | USA TRANSPORT INC | | | SCAC4 |
| 2 | USQI | US INLINE INC | | | SCAC4 |
| 3 | USQN | UST INC | | | SCAC4 |
| 4 | USQQ | U S COMEX | | | SCAC4 |
| 5 | USQX | United States of America | 7/1930-7/1932 | | NAKINA |
| 6 | USQX | United States of America (War Department, U.S.A.) | 7/1935 | | NAKINA |
| 7 | USQX | Quartermaster Corps, War Department, U.S.A. | 7/1937-4/1938 | | NAKINA |
| 8 | USQX | War Dept., U.S.A., Quartermaster Corps | 1/1941-1/1943 | | NAKINA |
| 9 | USQX | War Dept., U.S.A., Office of the Chief of Transportation | 1/1945-4/1947 | | NAKINA |
| 10 | USQX | Dept. of the Army, Office of the Chief of Transportation, Movement Division, Tank Car Section | 1/1950-1/1952 | | NAKINA |
| 11 | USQX | Dept. of the Army | added 7/1953 | | NAKINA |
| 12 | USQX | Dept. of the Army, Office of the Chief of Transportation, Railway Transport Service Division | 7/1954 | | NAKINA |
| 13 | USQX | Department of the Army, Transportation Materiel Command, Marietta, Pennsylvania | eliminated 10/1955 | | NAKINA |
| 14 | USQX | Department of the Army, Transportation Supply and Maintenance Command, St. Louis 1, Missouri | added 10/1955; eliminated 10/1956 | | NAKINA |
| 15 | USQX | Quartermaster Corps, War Department, U.S.A. | Apr-38 | | NRHS |
| 16 | USQX | Dept. of the Army, Office of the Chief of Transportation, Movement Division, Tank Car Section | Jan-52 | | NRHS |
| 17 | USQX | U.S. DEPARTMENT OF DEFENSE - ARMY | | | PWRC |
