TM 5-3805-257-24P UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS LISTS (INCLUDING DEPOT MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS LISTS) SECTION I.  INTRODUCTION 1.  Scope. This RPSTL lists and authorizes spares and repair parts; special tools; special test, measurement, and diagnostic equipment (TMDE); and other special support equipment required  for   performance   of   Unit,   Direct   Support,   and General Support Maintenance of the Scoop-type Loader. It  authorizes  the  requisitioning,  issue,  and  disposition  of spares, repair parts and special tools as indicated by the source, maintenance and recoverability (SMR) codes. 2.  General. In  addition  to  Section  I.    Introduction,  this  Repair  Parts and   Special   Tools   List   is   divided   into   the   following sections: a. Section I.  Repair Parts List.  A list of spares and repair   parts   authorized   by   this   RPSTL   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  alphanumeric  sequence,  with  the parts  in  each  group  listed  in  ascending  figure  and  item number   sequence.      Bulk   materials   are   listed   in   item name sequence.  Repair kits are listed separately in their own  functional  group  within  Section  II.    Repair  parts  for reparable   special   tools   are   also   listed   in   the   section. Items listed are shown on the associated illustration(s)/figure(s). b. Section  III.    Special  Tools  List.    A  list  of  special tools, special TMDE, and other special support equipment  authorized  by  this  RPSTL  (as  indicated  by Basis of Issue (BOI) information in DESCRIPTION AND USABLE   ON   CODE   column)   for   the   performance   of maintenance. c. Section  IV  Cross-reference  Indexes.    A  list,  In National  Item  Identification  Number  (N]IN)  sequence,  of all   National   stock   numbered   items   appearing   in   the listing, followed by a list in alphanumeric sequence of all part  numbers  appearing  in  the  listings.    National  stock numbers and part numbers are cross-referenced to each illustration/figure   and   item   number   appearance.      The figure   and   item   number   index   lists   figure   and   item numbers in alphanumeric sequence and crossreferences NSN, CAGE, and part numbers. 3.  Explanation of Columns (Sections 11 and 111). a. ITEM NO.    (Column  (1)).    Indicates  the  number used to identify items called out in the illustration. b. SMR     CODE     (Column     (2)).          The     Source, Maintenance,   and   Recoverability   (SMR)   code   is   a   5- position code containing supply/requisitioning information,  maintenance  category  authorization  criteria, and  disposition  instructions,  as  shown  in  the  following breakout: Source Code 1st two positions XXxxx How you get an item. Maintenance Code xxXXx 3d position 4th position Who can install, replace, Who can do complete or use the item. repair* on the item. Recoverability Code xxxxX 5th position Who determines disposition action on an unserviceable item. *Complete Repair:  Maintenance capacity, capability, and authority  to  perform  all  corrective  maintenance  tasks  of the "Repair" function in a use/user environment In order to restore serviceability to a failed item. (1) Source  Code.    The  source  code  tells  you how  to  get  an  item  needed  for  maintenance,  repair,  or overhaul   of   an   end   item/equipment.      Explanations   of source codes follows: 1