TM 10-3930-665-13&P NOTE:  When you use an NSN to requisition an item, the item you receive may have a different part number from the part ordered. e. DESCRIPTION AND USABLE ON CODE (UOC) (Column (5)).  This column includes the following information: (1) The Federal item name and, when required, a minimum description to identify the item. (2) The  physical  security  classification  of  the  item  is  indicated  by  the  parenthetical  entry  (insert  applicable physical  security  classified  abbreviation,  e.g.,  Phy  Sec  C1  (C)Confidential,  Phy  Sec  C1  (S)-Secret,  Phy  Sec  C1  (T)-Top Secret. (3) Items that are included in kits and sets are listed below the name of the kit or set. (4) Spare/repair parts that make up an assembled item are listed immediately following the assembled item line entry. (5) Part  numbers  for  bulk  materials  are  referenced  in  this  column  in  the  line  item  entry  for  the  item  to  be manufactured/ fabricated. (6) 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). (7) The usable on code, when applicable (see paragraph 5, Special Information). (8) 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. (9) 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. f.    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 this column in lieu of a quantity indicates that the quantity is variable and the quantity may vary from application to application. 4.  EXPLANATION OF COLUMNS (SECTION IV) a. National Stock Number (NSN) Index. (1) STOCK  NUMBER  column.    This  column  lists  the  NSN  by  National  item  identification  number  (NIIN) sequence.  The NIIN consists of the last nine digits of the NSN NSN (i.e., 5305-01-674-1467).  When using this NIIN column to locate an item, ignore the first 4 digits of the NSN.  However, the complete NSN should be used when ordering items by stock number. (2)    FIG.  column.  This column lists the number of the figure where the item is identified/located.  The figures are in numerical order in Section II and Section III. 6