TM 5-6115-365-15 C4 APPENDIX B BASIC ISSUE ITEMS LIST AND ITEMS TROOP INSTALLED OR AUTHORIZED Section I.  INTRODUCTION B1.  Scope This  appendix  lists  items  required  by  the  operator  for operation of the generator set. B-2.  General This list is divided into the following sections: a. Basic    Issue    Items    List    -    Section    II.        Not applicable. b. Items  Troop Installed or Authorized List Section III.  A list of items in alphabetical sequence, which at the discretion  of  the  unit  commander  may  accompany  the generator  set.    These  items  are  not  subject  to  turn-in with the generator set when evacuated. B-3.  Explanation of Columns The  following  provides  an  explanation  of  columns  in  the tabular list of items troop installed or authorized, section III. a. Source, Maintenance, and Recoverability Code(s) (SMR): (1) Source   Code.    This  code    indicates  the source for the listed item.  Source codes are: Code Explanation P Repair  parts,  special  tools,  and  test  equipment supplied    from    GSA/DSA    or    Army    supply system   and   authorized   for   use   at   indicated maintenance levels. P2 Repair  parts,  special  tools,  and  test  equipment which  are  procured  and  stocked  for  insurance purposes   be   cause   the   combat   or   military essentiality   of   the   end   item   dictates   that   a minimum  quantity  be  available  in  the  supply system. (2) Maintenance   code.      This   code   indicates   the lowest    level    of    maintenance    authorized    to install  the  listed  item.    The  maintenance  level code is: Code Explanation C Crew/Operator (3) Recoverability  code.    This  code  indicates whether   unserviceable   items   should   be   returned   for recovery    or    salvage.        Items    not    coded    are    non- recoverable.  Recoverability codes are: Code Explanation R Applied     to     repair     parts     (assemblies     and components), special tools, and test equipment-which are considered economically reparable at direct and general support maintenance levels. S Repair   parts,   special   tools,   test   equipment, and    assemblies    which    are    economically reparable   at   DSU   and   GSU   activities   and which  normally  are  furnished  by  supply  on an exchange basis. b. Federal  Stock  Number.    This  column  indicates the  Federal  stock  number  assigned  to  the  item.    This number will be used for requisitioning purposes. c. Description.    This  column  indicates  the  Federal item   name   and   any   additional   description   of   the   item required. d. Unit of Measure (U/M). A 2-character alphabetic abbreviation indicating the amount or quantity of the item upon which the allowances are based:  e.g., ft, ea, etc. e. Quantity Authorized.    This  column  indicates  the quantity   of   the   item   authorized   to   be   used   with   the equipment. B-1