ARMY TM 10-1670-278-23&P
AIR FORCE T.O. 13C5-26-2
NAVY NAVAIR 13-1-27
Part Number (Column (4)). Indicates the primary number used by the manufacturer, (individual, company,
firm, corporation, or Government activity), which controls the design and characteristics of the item by means of its
engineering drawings, specifications, standards, and inspection requirements to identify an item or range of items.
When you use an NSN to requisition an item, the item you receive may have a different part
number from the part ordered.
Description and Usable on Code (UOC) (Column (5)). This column includes the following information:
The Federal item name and, when required, a minimum description to identify the item.
The physical security classification of the item is indicated by the parenthetical entry, e.g., Phy Sec C1 (C)-
Confidential, Phy Sec CI (S)-Secret, Phy Sec CI (T)-Top-Secret.
Items that are included in kits and sets are listed below the name of the kit or set.
Spare/repair parts that make up an assembled item are listed immediately following the assembled item line
Part numbers of bulk materials are referenced in this column in the line entry for the item to be
When the item is not used with all serial numbers of the same model, the effective serial numbers are shown
on the last line(s) of the description (before UOC).
The usable on code, when applicable (reference paragraph 5, Special Information).
In the Special Tools List Section, the basis of issue (BOI) appears as the last line(s) in the entry for each
special tool, special TMDE, and other special support equipment. When density of equipment supported
exceeds density spread indicated in the basis of issue, the total authorization is increased proportionately.
The statement END OF FIGURE" appears just below the last item description in Column (5) for a given
figure in both Section II and Section III.
Qty (Column (6)). 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 the column in lieu of a quantity indicates that the quantity is variable and may vary from application to