TM  10-3930-243-34P 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 I digits  of  the  NSN  (i.  e.,  5305-01-674-1467  ).  When NIlN 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  Ill. (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. Code (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  II  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 Ill. (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  (indi- vidual,   firm,   corporation,   or   Government   activity), which  controls  the  design  and  characteristics  of  the item   by   means   of   its   engineering   drawings, specifications   standards   and   inspection   require- ments  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.   Usable   on   codes   are   shown   as “UOC:  .  .  .  .  .  .  .  .  .”   in  the  Description  column Justified   left)   on   the   first   line   following   applicable item   description/nomenclature.   Uncoded   items   are applicable  to  all  models.  Identification  of  the  usable on  codes  used  in  the  RPSTL  are: Used  on CHA RTL10    without  ROPS CHB RTL10-1  without  ROPS U75 RTL10 with ROPS U76 RTL10-1 with ROPS 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 4