APPENDIX   C BASIC   ISSUE   ITEMS   LIST Section I. C-1.  scope This  appendix  lists  items  which  accompany  the INTRODUCTION air M A x xl conditioner    or are required for   installation, operation  or  operator’s  maintenance. C-2.   General This   Basic   Issue   Items   List   is   divided   into   the following   sections: a.  Basic   Issue   Items—Section   II.   A   list   of   items which   accompany   the   air   conditioner   and   are required   by   the   operator   /   crew   for   installation, operation,   or   maintenance. b.   Maintenance   and Operating    Supplies— Section   III. A   listing of    maintenance and operating   supplies   required   for   initial   operation— (not  applicable) C-3.   Explanation   of   Columns The   following   provides   an   explanation   of   columns in   the   tabular   list   of   Basic   Issue   Items,   section   II. a.  Source   code,   indicates   the   source   for   the   listed item.  Source  codes  are: Code Explanation P Repair   parts   which   are   stocked   in   or   supplied from  the  GSA  /  DSA,  or  Army  supply  system  and authorized   for   use   at   indicated   maintenance categories. Repair  parts  which  are  procured  and  stocked  for insurance purposes because the combat or military essentiality of   the   end   item   dictates   that   a minimum  quantity  be  available  in  the  supply system. Repair  parts  which  are  not  procured  or  stocked, but   are to  be  manufactured  in  indicated maintenance  levels. Assemblies  which  are  not  procured  or  stocked  as such.  but  are  made  up  of  two  or  more  units.  Such component  units  carry  individual  stock  numbers and   descriptions,   are   procured   and   stocked separately  and  can  be  assembled  to  form  the required  assembly  at  indicated  maintenance categories. Parts  and  assemblies  which  are  not  procured  or stocked  and  the  mortality  of  which  normally  is below   that   of   the   applicable   end   item   or component.  The  failure  of  such  part  or  assembly should  result  in  retirement  of  the  end  item  from the  supply  system. Repair  parts  which  are  not  procured  or  stocked. The  requirement  for  such  items  will  be  filled  by use  of  the  next  higher  assembly  or  component. Code Explanation X2 Repair  parts  which  are  not  stocked.  The  indicated maintenance  category  requiring  such  repair  parts will attempt to obtain them through cannibalization.   W  here  such  repair  parts  are  not obtainable   through   cannibalization,   requirements will   be   requisitioned.   with   accompanying justification.   through   normal   supply   channels. G Major  assemblies  that  are  procured  with  PEMA funds for initial issue only as exchange assemblies at  DSU  and  GSU  level.  These  assemblies  will  not be  stocked  above  DS  and  GS  level  or  returned  to depot  supply  level. (2)     Maintenance     code,     indicates     the     lowest category   of   maintenance   authorized   to   install   the listed   item.   The   maintenance   level   code   is: Code Explanation C Crew /  operator (3)   Recoverability   code,   indicates   whether unserviceable   items   should   be   returned   for   recovery or   salvage. Items   not   coded   are   expendable. Recoverability   codes   are: Code Explanation R Repair  parts  (assemblies  and  components)  which are   considered   economically   reparable   at   direct and general support maintenance levels. When the maintenance  capability  to  repair  these  items  does not  exist,  they  are  normally  disposed  of  at  the  GS level. W hen supply considerations dictate, some of these  repair  parts  may  be  listed  for  automatic return  to  supply  for  depot  level  repair  as  set  forth in   AR   710-,50.   When   so   listed,   they   will   be replaced  by  supply  on  an  exchange  basis. s Repair   parts   and   assemblies which are economically reparable at DSU and GSU activities   and   which   normally   are   furnished   by supply  on  an  exchange  basis.  When  items  are determined  by  a  GSU  to  be  uneconomically reparable,  they  will  be  evacuated  to  a  depot  for evaluation  and  analysis  before  final  disposition. High  dollar  value  recoverable  repair  parts  which are  subject  to  special  handling  and  are  issued  on an  exchange  basis.  Such  repair  parts  normally  are repaired   or   overhauled   at   depot   maintenance activities. u Repair  parts  specifically  selected  for  salvage  by reclamation  units  because  of  precious  metal content,  critical  materials,  or   high   dollar   value reusable  casings  or  castings. b.   Federal   Stock   Number.   This   column   in- dicates   the   Federal   stock   number   assigned   to   the item  and  will  be  used  for  requisitioning  purposes. C-1