(a) (b) (4) The lowest maintenance level au- thorized to manufacture, assemble, and/or  install  the  part  is  indicated by one of the following code sym- bols: 0-Organizational  Maintenance F-Direct   Support   Maintenance (DS) This  column  is  left  blank  when components  of  kits  or  sets  are  listed that  are  not  applicable  to  the  item of equipment, or when an item is source coded XI. Recoverability. When   no   code   is shown  in  the  recoverability  column the  part  is  considered  expendable. b. Federal Stock Number. When a Federal stock number is available for a part, it will be shown in this column and will be used for requisitioning   purposes. c.  Description. (1) (2) (3) (4) The item name and a brief descrip- tion of the part are shown. A five-digit Federal supply cede for manufacturers  and/or  other  supply service is shown in parentheses, fol- lowed  by  the  manufacturer’s  part number.  This  number  will  be  used  for requisitioning  purposes  when  no  Fed- eral stock number is indicated in the Federal  stock  number  column. Example:   (08645)   86453 Repair  part  quantities  included  in kits,  sets,  and  assemblies,  that  differ from the actual quantity used in this specific end item, are listed in paren- theses. When repair parts are source coded “C,” the manufacturer’s pant number will  be  used  for  local  procurement. Note.  When   a   minimum   stockage   suffici- ent   to   repair   one   item   and/or   assembly   is authorized,   this   quantity   will   be   indicated to   the   Description   column   with   the   notation “minimum   stockage   of is  authorized. d. Unit of Issue.  If no abbreviation is shown in this column, the unit of issue is “each.” e.  Quantity  Incorporated  in Unit. The  ac- tual number of parts used in the application indicated is shown in this column. A zero (0) 30 is shown when components of kits or sets are listed  that  are  not  applicable  to  this  specific end  item. f.   15-Day   Organizational   Maintenance   Al- lowance.  Shown  for  each  repair  part  is  either a  quantity  or  asterisk  allocation  which  indi- cates  the  following: ( l) (2) (3) (4) (5) A guide quantity factor is shown for each  repair  part  authorized  to  be stocked  by  organizational  mainten- ance.  This  quantity  is  based  on  past experience with similar items and the latest  mortality  data  for  350  hours operation  per  year.  It  is  the  average quantity required  to  provide  one prescribed  load  for  1–5  and/or  6-10 items of equipment, for a 15-day pe- riod  under  average  combat  condit- ions. Note.  Combat   essential   items   which   must be   stocked   or   on   order   at   organizational maintenance  at  all  times,  regardless  of  de- mand,  will  be  identified  in  the  allowance column  by  a  quantity  in  parentheses. The  quantity  of  repair  pants  author- ized  for  stockage  in  accordance  with the number of prescribed loads au- thorized  by  the  major  commander are determined by using table 2. Table  2  is  a  consolidation  of  items quantitatively  allocated  in  this  man- ual. Quantities listed are for one pre- scribed  load  for  a  15-day  period.  A minimum  stockage  sufficient  to  repair one item and/or assembly is author- ized  (e.  g.,  if  3  belts  are  required, then 3 belts are allocated as the mini- mum stockage). This quantity will be indicated in the minimum stockage authorization  column. Units and organizations authorized more than one prescribed load will multiply  the  quantity  listed  in  the  ap- propriate  end  item  density  spread  col- umn of 1-5 or 6-10 by the number of prescribed  loads. When more than 10 equipments re- quire  support,  multiply  the  quantity listed  in  the  6-10  column  by  the  num- ber of equipments and the number of authorized  prescribed  loads,  divide  by 10, and round to the nearest whole number. AGO  10117A