category of maintenance. If the number or complexity of the tasks within the listed maintenance function vary
at different maintenance categories, appropriate "worktime" figures will be shown for each category. The
number of man-hours specified by the "worktime" figure represents the average time required to restore an
item (assembly, subassembly, component, module, end item or system) to a serviceable condition under
typical field operating conditions. This time includes preparation time, troubleshooting time and quality
assurance/quality control time in addition to the time required to perform the specific tasks identified for the
maintenance functions authorized in the maintenance allocation chart. Subcolumns of column 4 are as follows:
F-- Direct Support
H-- General Support Depot
e. Column 5, Tools and Equipment. Column 5 specifies by code, those common tool sets (not individual
tools) and special tools, test, and support equipment required to perform the designated function.
A-4. Tool and Test Equipment Requirements
a. Tool or Test Equipment Reference Code. The numbers in this column coincide with the numbers used in
the tools and equipment column of the MAC. The numbers indicate the applicable tool or test equipment for
the maintenance functions.
b. Maintenance Category. The codes in this column indicate the maintenance category allocated the tool or
c. Nomenclature. This column lists the noun name and nomenclature of the tools and test equipment
required to perform the maintenance functions.
d. National/NATO Stock Number. This column lists the National/NATO stock number of the specific tool or
e. Tool Number. This column lists the manufacturer's part number of the tool followed by the Federal
Supply Code for manufacturers (5-digit) in parentheses.