SECTION I. TM 5-4310-250-24P UNIT MAINTENANCE INTERMEDIATE DIRECT SUPPORT AND INTERMEDIATE GENERAL SUPPORT MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS LIST 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 Maintenance, Intermediate   Direct   Support   and   Intermediate   General Support   Maintenance   of   the   Compressor,   Rotary.      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  II.    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 repairable   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  Index.    A  list,  in National  hem  Identification  Number  (NIIN)  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 cross- references NSN, FSCM, and part numbers. 3.  Explanation of Columns (Sections II and Ill). 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 3rd position 4th position Who can install, Who can replace or use do complete 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