TM 5-6675-306-24P SECTION I INTRODUCTION 1.  Scope support,   and  general  support  maintenance   of  the theodolite. 2.  General a.  Section  II,  Repair  Parts  List.  A  list  of  repair parts  authorized  for  use  in  the  performance  of maintenance.   The   list   also   includes   parts   which must be removed for replacement of the authorized parts.   Parts   lists   are   composed   of   functional groups  in  ascending  numerical  sequence,  with  the parts   in   each   group   listed   in   figure   and   item number   sequence. Bulk   materials   are   listed   in NSN sequence, as the last group in Section II. b.   Section   III,   Special   Tools   List.   A  list  of special  tools,  TMDE,  and  support  equipment authorized  for  the  performance  of  maintenance,  at the organizational level. c.  Section  IV,  National  Stock  Number  and  Part Number   Index.   A   list,   in   ascending   numerical sequence,  of  all  National  stock  numbers  appearing in  the  listings,  followed  by  a  list,  in  alphanumeric sequence,    of   all   part   numbers   appearing   in   the listings.  National  stock  number  and  part  numbers are  cross-referenced  to  each  illustration  figure  and item   number   appearance. 3.   Explanation   of   Columns The   following   provides   an   explanation   of columns found in the tabular listings: a.   Illustration.   This   column   is   divided   as follows: (1)   Figure   number. Indicates  the  figure number   of   the   illustration   in   which   the   item   is (2)  Item  number.  The  number  used  to  identify each item called out in the illustration. b.  Source, Maintenance,   and   Recoverability (1)  Source  code.  Source  codes  are  assigned  to tems  to  indicate  the  manner  of  acquiring s  for maintenance, repair, or overhaul Source  codes  are  entered  in  the  first positions  of  the  Uniform  SMR  Code Code PA PB PC PD PE PF PG KD KF KB MO MF MH M D AO AF AH AD XA XB Definition Item  procured  and  stocked  for  anticipated  or known  usage Item  procured  and  stocked  for  insurance  purpose because   essentiality   dictates   that   a   minimum quantity  be  available  in  the  supply  systems Item  procured  and  stocked  and  which  otherwise w o u l d    b e    c o d e d    P A    e x c e p t    t h a t    i t    i S deteriorative  in  nature Support    item,    excluding    support    equipment, procured   for   initial   issue   or   outfitting   and stocked  only  for  subsequent  or  additional  initial issues   or   outfittings   Not   subject   to   automatic replenishment Support   equipment   procured   and   stocked   for initial   issue   or   outfitting   to   specified maintenance repair activities Support  equipment  which  will  not  be  stocked  but which will be centrally procured on demand Item   procured   and   stocked   to   provide   for sustained  support  for  the  life  of  the  equipment It  iS  applied  to  an  item  peculiar  to  the equipment which, because   of   probable discontinuance  or  shutdown  of  production facilities, would  prove uneconomical   to reproduce at a later time An  item  of  a  depot  overhaul/repalr  kit  and  not purchased  separately  Depot  kit  defined  as  a  kit that  provides  items  required  at  the  time  of overhaul   or   repair An  item  of  a  maintenance  kit  and  not  purchased separately  Maintenance  kit  defined  as  a  kit  that provides   an   item   that   can   be   replaced   at organizational   or   intermediate   levels   of maintenance Item  included  in  both  a  depot  overhaul/repair  kit and a maintenance kit Item  to  be  manufactured  or  fabricated  at organizational level Item  to  be  manufactured  or  fabricated  at  the direct support maintenance level Item  to  be  manufactured  or  fabricated  at  the general support maintenance level Item  to  be  manufactured  or  fabricated  at  the depot maintenance level Item to be assembled at organizational level Item   to   be   assembled   at   direct   support maintenance level I t e m    t o   b e   a s s e m b l e d   a t   g e n e r a l   s u p p o r t maintenance    level Item  to  be  assembled  at  depot  maintenace  level Item  is  not  procured  or  stocked  because  the requirements    for    the    item    will    result    in    the replacement   of   the   next   higher   assembly I t e m    i s    n o t    procured   o r    s t o c k e d    if   n o t    a v a i l a b l e t h r o u g h   s a l v a g e .   r e q u i s i t i o n 1-1