M1 TNK SYS MECH · Converted to 63Z, effective April 1, 1998
DA Pam 611-21 Table 10-4 maps predecessor MOSC 63E5 to 63Z; source successor entries: 63Z MECHANICAL MAINTENANCE SUPERVISOR; conversion effective 01 Apr 1998.
Sources
- DA Pam 611-21, chapter 10, Table 10-4, Enlisted MOS Conversion Listing (Table 10-4, PDF p. 272)