EXPENDABLE/DURABLE SUPPLIES AND MATERIALS LIST
Section I. INTRODUCTION
D-1. SCOPE. This appendix lists expendable/durable supplies and materials you will need to operate and maintain the
Reverse Osmosis Water Purification Unit. This listing is for informational purposes only and is not authority to requisition
the listed items. These items are authorized to you by CTA 50-970, Expendable/Durable Items (Except Medical, Class
V, Repair Parts, and Heraldic Items), or CTA 8-100, Army Medical Department Expendable/Durable Items.
D-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, Appendix D.").
b. Column (2) Level. This column identifies the lowest level of maintenance that requires the listed item.
O Organizational maintenance
F Direct support maintenance
H General support 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.
d. Column (4) Description. Indicates the Federal item name and, if required, a description to identify the item.
e. 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.