TM 5-2420-222-34P 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 ll. (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. PARTNUMBER  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 numeric 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 CAGE columns to the left. (4) FIG. column.  This column lists the number of   the   figure   where   the   item    is   identified/located   in Sections 11 and Ill. (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) CAGE    column.        The    Commercial    and Government   Entity   (CAGE)   is   a   5-digit   numeric   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. This  manual  covers  end  items  purchased under    two    contracts.        One    contract    covers    serial numbers   235786   through   235999;   the   other   contract covers serial numbers 319995 through 342573. Although the model number remains the same, there are minor   design   changes   in   the   end   items.      Check   the maintenance    manuals    for    the    location    of    the    serial numbers. WARNING:   Installation    of    wrong    part    numbers    may result in injury to personnel or damage to equipment. b. USABLE  ON  CODE.    The  usable  on  code appears in the lower left corner of the description column heading.  Not Applicable. c. 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  5-2420-222-20  or  TM  5- 2420-222-34. d. ASSEMBLY    INSTRUCTIONS.        Detailed assembly   instructions   for   items   source   coded   to   be assembled from component spare/repair parts are found in  TM  5-2420-222-20  or  TM  5-2420-222-34.    Items  that make  up  the  assembly  are  listed  immediately  following the   assembly   item   entry   or   reference   is   made   to   an applicable figure. e. KITS.  Line item entries for repair parts kits appear in group 9401 in Section II. 4