EXPENDABLE SUPPLIES AND MATERIALS LIST
SECTION I. INTRODUCTION
This appendix lists expendable supplies and materials you will need to operate and maintain the immersion heater.
These items are authorized to you by CTA 50-970. Expendable items (Except Medical, Class V, Repair Parts, and
E-2. EXPLANATION OF COLUMNS
Column 1. Item Number. This number is assigned to the entry in the listing and is referenced in the narrative
instructions to identify the item (e.g. "Use cleaning compound, Item 10, Appendix E").
Column 2. Level. This column identifies the lowest level of maintenance that requires the item.
C - Operator/crew
O - Unit maintenance
Column 3. National Stock Number. This is the national stock number assigned to the item which you can use
to requisition it.
Column 4. Description. Indicates the Federal item name and, if required, a description to identify the item. The
last line for each item indicates the part number followed by the Commercial and Government Entity Code (CAGEC) in
parentheses, if applicable.
Column 5. Unit of Measure (U/M). Indicates the measure used in performing the actual maintenance function.
This measure is expressed by a two-character alphabetical abbreviation (e.g., ea, in, pr). If the unit of measure differs
from the unit of issue, requisition the lowest unit of issue that will satisfy your requirements.