TM 10-3930-609-24P 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 NSN digits of the NSN (i.e., 5305-01-674-1467 ).   When NIIN using  this  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. (3) 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. b. PART  NUMBER  INDEX.    Part  numbers  in  this index are listed by part number in ascending alphanumeric   sequence   (i.e.,   vertical   arrangement   of letter   and   number   combination   which   places   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). (1)   CAGEC   column.      The    Commercial    and Government    Entity    (CAGE)    Code    (C)    is    a    5-digit alphanumeric         code         used         to         identify      the manufacturer,  distributor,  or  Government  agency,  etc., that supplies the item. (2)   PART   NUMBER   column.      Indicates    the primary  number   used   by   the   manufacturer   (individual, 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. (3) STOCK   NUMBER   column.      This   column lists    the    NSN    for    the    associated    part    number    and manufacturer    identified    in    the    PART    NUMBER    and CAGEC columns to the left. (4) FIG.  column.  This column lists the number of   the   figure   where   the   item   is   identified/located   in Sections II and III. (5) ITEM   column.      The   item   number   is   that number  assigned  to  the  item  as  it  appears  in  the  figure referenced in the adjacent figure number column. c. FIGURE AND ITEM NUMBER INDEX. (1) FIG.  column.  This column lists the number of   the   figure   where   the   item   is   identified/located   in Sections II and III. (2) ITEM   column.      The   item   number   is   that number  assigned  to  the  item  as  it  appears  in  the  figure referenced in the adjacent figure number column. (3) STOCK   NUMBER   column.      This   column lists the NSN for the item. (4) CAGEC   column.      The    Commercial    and Government    Entity    (CAGE)    Code    (C)    is    a    5-digit alphanumeric            code            used            to        identify        the manufacturer,  distributor,  or  Government  agency,  etc., that supplies the item. (5) PART   NUMBER   column.        Indicates    the primary  number   used   by   the   manufacturer   (individual, 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. 5. Special Information. a. USABLE   ON   CODE.        The    usable    on    code appears in the lower left corner of the Description column heading.  Not Applicable. b. FABRICATION INSTRUCTIONS.  Bulk materials required   to   manufacture   items   are   listed   in   the   Bulk Material Functional Group of this RPSTL.  Part numbers for bulk materials are also referenced in the Description column    of    the    line    item    entry    for    the    item    to    be manufactured/fabricated. Detailed fabrication instructions  for  items  source  coded  to  be  manufactured or fabricated are found in TM 103930-609-12 and TM 10- 3930-609-35. c. ASSEMBLY INSTRUCTIONS. Detailed assembly   instructions   for   items   source   coded   to   be assembled from component spare/repair parts are found in  TM  10-3930-609-12  and  TM  10-3930609-35.    Items that    make    up    the    assembly    are    listed    immediately following the assembly item entry or reference is made to an applicable figure. d. KITS.      Line   item   entries   for   repair   parts   kits appear in group 9401 in Section II. 4