EXPENDABLE SUPPLIES AND
Section I INTRODUCTION
This appendix lists expendable supplies and materials you
will need to operate and maintain the Manual Telephone
Switch board SB-993/GT. These items are authorized to
you by CTA 50-970, Expendable Items (except medical,
class V, repair parts, and heraldic items).
E-2. EXPLANATION OF COLUMNS.
a. Column (1), Item number. This number is assigned
to the entry in the listing and is referenced in the narrative
instructions to identify the material (e.g., Use cleaning
compound, item 5, app. E).
b. Column (2), Level. This column identifies the lowest
level of maintenance that requires the listed item.
C - Operator/Crew
O - Organizational Maintenance
c. Column (3), National Stock Number. This is the
national stock number assigned to the item, use it to
request or requisition the item.