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. The
last line for each item indicates the part number followed by the Federal Supply Code for Manufacturer (FSCM) in
parentheses, if applicable.
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.