B-4. EXPLANATION OF COLUMNS IN TOOL AND TEST EQUIPMENT REQUIREMENTS, SECTION III.
Column 1, Reference Code. The tool and test equipment reference code correlates with a code used in the
MAC, Section II, Column 5.
Column 2, Maintenance Category. The lowest category of maintenance authorized to use the tool or test
Column 3, Nomenclature. Name or Identification of the tool or test equipment.
Column 4, National Stock Number. The National stock number of the specific tool or test equipment.
Column 5, Tool Number. The manufacturer's part number.