TM 10-3930-243-20P 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.,   ~).     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 num- ber. (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 Sec- tion Ill. (3) ITEM co/umn.  The item number identifies the item associated with the figure listed in the adja- cent 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  O  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 nu- meric   code   used   to   identify   the   manufacturer, distributor,  or  Government  agency,  etc.,  that  sup- plies  the  item. (2) PART NUMBER column. Indicates the pri- mary 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. co/umn. This column lists the number of  the  figure  where  the  item  is  identified/located  in Sections II and Ill. (5)  /TEM  column.   The  item  number  is  that number assigned to the item as it appears in the fig- ure   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  co/umn.  The  item  number  is  that number assigned to the item as it appears in the fig- ure   referenced   in   the   adjacent   figure   number column. (3) STOCK  NUMBER  co/umn.  This   column lists the NSN for the item. (4) CAGE co/umn. The Commercial and Gov- ernment  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 pri- mary 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 475 RTL10  with  ROPS 476 RTL10-1  with  ROPS b. FABRICATION  /NSTRUCT/ONS,  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 TM10-3930- 243-12. 4