TM  10-5410-224-24P Section  I. INTRODUCTION 1.   Scope. This   manual   lists   repair   parts,   special   tools,   test, measurement,   and   diagnostic   equipment   (TMDE),   and other   support   equipment   required   for   operation   and performance   of   organizational,   direct   support,   and general   support   maintenance   of   the   SPAM   Shelter. 2.   General. a. Section   II   -   Repair   Parts   List.   A   list   of   re   - pair   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   se- quence.   Bulk   materials   and   repair   kit   are   listed   as the  last  two  groups  in  Section  II. b. Section  III   -   Special   Tools   List.   A   list   of   spe- cial   tools,   authorized   for   the   performance   of   mainte- nance,  at  the  organizational,  direct  and  general  sup- port   level. c . Section  IV  -  NATIONAL  Stock  Number  and  Part Number   Index.   A   list,   in   ascending   numerical   se- quence,   of   all   National   stock   numbers   appearing   in the   listings,   followed   by   a   list,   in   alphanumeric   se- quence,   of   all   part   numbers   appearing   in   the   listings. National   stock   number   and   part   numbers   are   cross- referenced  to  each  illustration  figure  and  item  num- ber    appearance. d . Section   V   -  Alphabetical   Index.   A   list,   in   al- phabetical   sequence,   of   all   items   appearing   in   the listings. All   items   are   cross-referenced   to   page numbers  where  they  are  to  be  found  in  the  listings. 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)  F i g u r e    N u m b e r.   Indicates   the   figure   num- ber  of  the  illustration  in  which  the  item  is  shown. (2)   Item   Number. The  number  used  to  identi- fy   each   item   called   out   in   the   illustration. Source,   Maintenance,   and   Recoverability   Codes (SMR). (1) support support Source   Code.   Source   codes   are   assigned   to items   to   indicate   the   manner   of   acquiring items   for   maintenance,   repair,   or   overhaul of   end   items.   Source   codes   are   entered   in   the   first and   second   positions   of   the   Uniform   SMR   Code   for- mat   as   follows: Code Definition PA PB PC PD PE PF PG KD KF KB MO MF MH MD AO AF AH AD XA Item   procured   and   stocked   for   anticipated   or known  usage. Item   procured   and   stocked   for   insurance   pur- pose   because   essentiality   dictates   that   a   mini- mum  quantity  be  available  in  the  supply  systems. Item  procured  and  stocked  and  which  otherwise would   be   coded   PA   except   that   it   is   deteriora- tive   in   nature. Support   item,   excluding   support   equipment, procured   for   initial   issue   or   outfitting   and stocked   only   for   subsequent   or   additional   initial issues   or   outfitting.   Not   subject   to   automatic replenishment. Support   equipment   procured   and   stocked   for initial   issue   or   outfitting   to   specified   mainte- nance   repair   activities. Support   equipment   which   will   not   be   stocked but  which  will  be  centrally  procured  on  demand. Item   procured   and   stocked   to   provide   for   sus- tained   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/repair   kit   and   not purchased  separately.  Depot  kit  defined  as  a  kit that  provides  items  required  at  the  time  of  over- haul   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   main- tenance. Item   included   in   both   a   depot   overhaul/repair kit  and  a  maintenance  kit. Item   to   be   manufactured   or   fabricated   at   orga- nizational   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   main- tenance   level. Item   to   be   assembled   at   general   support   main- tenance   level. Item  to  be  assembled  at  depot  maintenance  level. Item   is   not   procured   or   stocked   because   the requirements   for   the   item   will   result   in   the replacement   of   the   next   higher   assembly. iii