Military Unit Number
A Military Unit Number is a numeric alternate designation for military units in the armed forces and internal troops of post-Soviet states, originally used by those of the Soviet Union.
For Ground Forces the Military Unit Number is assigned for a military unit ; for Navy the Military Unit Number is assigned for a single ship.
The number is also used for the unit's Military mail.
Military Unit Number standards for post-Soviet states
| Country | Forces type | Code rules | Example |
| Armed Forces | 5 digits | 28376 | |
| National Guard | 4 digits | 2837 | |
| Armed Forces | 1 Cyrillic letter and 4 digits | А0104 | |
| National Guard | 4 digits | 2837 | |
| Armed Forces | 5 digits | 37615 | |
| Internal Troops | 4 digits | 2837 | |
| Armed Forces | 5 digits | 32363 | |
| National Guard | 4 digits | 6506 | |
| Armed Forces | 5 digits | 08050 | |
| Internal Troops | 4 digits | 6506 |