3. Hardness Critical Item (HCI). A support item that provides the equipment with special protection
from electromagnetic pulse (EMP) damage during a nuclear attack.
4. The statement "END OF FIGURE" appears just below the last item description in Column (6) for a
given figure in both the repair parts list and special tools list work packages.
QTY (Column (7)). The QTY (quantity per figure) column indicates the quantity of the item used in the
breakout shown on the illustration/figure, which is prepared for a functional group, subfunctional group, or an
assembly. A "V" appearing in this column instead of quantity indicates that the quantity is a variable with
EXPLANATION OF CROSS-REFERENCE INDEXES WORK PACKAGES FORMAT AND COLUMNS
National Stock Number (NSN) Index Work Package.
STOCK NUMBER Column. This column lists the NSN in National item identification number (NIIN)
sequence. The NIIN consists of the last nine digits of the NSN, i.e.,
When using this column to locate an item, ignore the first four digits of the NSN. Use the complete NSN
(13 digits) when requisitioning by stock number.
FIG. Column. This column lists the number of the figure where the item is identified/located. The figures
are in the repair parts list and special tools list work packages.
ITEM Column. The Item number identifies the item associated with the figure listed in the adjacent FIG.
Column. This item is also identified by the NSN listed on the same line.
2. Part Number (P/N) Index Work Package. P/Ns in this index are listed in ascending alphanumeric
sequence (i.e., vertical arrangement of letter and number combinations which place the first letter or digit
of each group in order A through Z, followed by the numbers 0 through 9, and each following letter or
digit in like order).
PART NUMBER Column. Indicates the P/N assigned to the item.
FIG. Column. This column lists the number of the figure where the item is identified/located in the repair
parts list and special tools list work packages.
ITEM Column. The item number is the number assigned to the item as it appears in the figure referenced
in adjacent figure number column.
USABLE ON CODE (UOC). The usable on code appears in the lower left corner of the Description
Column heading. Usable on codes are shown as "UOC: ..." in the Description Column (justified left) on
the first line under the applicable item/nomenclature. Uncoded items are applicable to all models.
Identification of the usable on codes used in this RPSTL are: