(3) (4) (5) Example: If the number of equipment supported  is  30  and  the  allowance  fac- tor for 100 equipments is 5, the fol- lowing  formula  would  be  used: 3 0 x 5 ÷ 1 0 0 = 1 . 5 The resulting fraction is 0.5; there- fore, the stockage is 2. If the result is 1 or more and includes a fraction of   less   than   0.5,   the   quantity   is rounded to the next lower number. When the computed result is less than 0.5, no quantity is authorized for di- rect and general support, and depot maintenance.  However,  if  the  item  is combat essential, a quantity of 1 is authorized. Example:  If the number of equipment supported is 30 and the allowance fac- tor  for  100  equipments  is  28,  the  fol- lowing  formula  would  be  used: 30  x  28  ÷  100  =  8.4 The  resulting  fraction  is  less  than 0.5; therefore, the stockage is 8. In the guide quantity columns for di- rect  and  general  support  mainte- nance,  additional  repair  parts  author- ized for use but not for initial stockage are listed without a guide quantity factor. These items are identified by an asterisk and may be added to or deleted  from  stock  when  recorded  de- mand experience justifies a change in stockage  objective. Parts that may be required for depot maintenance,  in  addition  to  those  al- located, are identified by an asterisk. These parts are to be requisitioned, when required, if not obtainable from reclamation,  fabrication,  or  local  pro- curement. Combat essential items of a critical nature which must be stocked at di- rect  and  genenal  support  maintenance at  all  times,  regardless  of  demand  are identified in the allowance column by inclosing   the   allowance   factor   in parentheses. h.  Direct  and  General  Support  Maintenance 15-Da#  Level. (1)  Direct  support  (DS).  This  column 32 (2) (3) lists  the  initial  guide  quantity  allow- ance factors of repair parts author- ized  for  initial  stockage  by  direct  sup- port  maintenance  activities  to  provide direct support maintenance for Mo- bility  Command  equipment  and  to provide organizational maintenance repair parts for supported unlits for a  15-day  period.   Additional repair parts  identified  by  an  asterisk  are  ex- plained in g above.  Upon  establish-. ment  of  supply  records,  recorded  de- mand experience will be used to com- pute  stockage  objectives  on  authorized repair parts. Review of stockage ob- jectives will be performed in the time cycle  prescribed  by  major  com- manders. General support ( GS). This column lists  initial  guide  quantity  allocation factors  of  repair  parts  authorized  for initial  stockage  by  general  support maintenance  activities  to  provide  gen- eral  support  maintenance  for  Mobility Command  equipment  for  a  15-day period. Additional repair parts iden- tified by an asterisk are explained in g above.  Upon  establishment  of  sup- ply  records,  recorded  demand  experi- ence  will  be  used  to  compute  stockage objectives on authorized repair parts. Review of the stockage objectives will be performed in the time cycle pre- scribed  by  major  commanders. Units  with  TOE  capability  of  per- forming  partial  or  complete  direct and  general  support  maintenance  for organic  Mobility  Command  equip- ment. Units with TOE capability of performing  partial  or  complete  direct and  general  support  maintenance  for organic  Mobility  Command  equipment will  be  authorized  to  stock  direct  and/ or general support repair parts only when specific agreements are made between the commander of the desig- nated parts supply activity, normally DSU (Direct Support Units) and us- ing  unit.  Parts  so  furnished  are  in addition to the prescribed load and will be adjusted as demands indicate. AGO  10117A