TM 10-8340-220-23P (3) Recoverability code. Indicates whether unserviceable  items  should  be  returned  for  recovery  or salvage. Items not coded are expendable. Recoverability codes are: Code Explanation R Repair parts (assemblies   and  components)  which are   considered   economically   repairable   at   direct and  general  support  maintenance  levels.    When the  maintenance  capability  to  repair  these  items does not exist, they are normally disposed of at the GS   level.      When   supply   considerations   dictate, some   of   these   repair   parts   may   be   listed   for automatic return to supply for depot level repair as set forth in AR 710-50.  When so listed, they will be replaced by supply on an exchange basis. S Repair parts and assemblies which are economically repairable at DSU and GSU activities and which normally are furnished by supply on an exchange basis.  When items are determined by a GSU to be uneconomically repairable, they will be evacuated  to  a  depot  for  evaluation  and  analysis before final disposition. T High  dollar  value  recoverable  repair  parts  which are  subject  to  special  handling  and  are  issued  on an exchange basis.  Such repair parts normally are repaired    or    overhauled    at    depot    maintenance activities. U Repair  parts  specifically  selected  for  salvage  by reclamation    units    because    of    precious    metal content,   critical   materials,   or   high   dollar    value reusable casings and castings. b.    Federal  Stock  Number.    Indicates  the  Federal stock  number  assigned  to  the  item  and  will  be  used  for requisitioning purposes. c.    Description.    Indicates  the  Federal  item  name and   any   additional   description   of   the   item   required. Assembly  components  and  subassemblies  are  indented under  major  assemblies.    The  abbreviation  "w/e"  when used as part  of  the  nomenclature,  indicates  the  Federal stock number includes all armament, equipment, accessories,  and  repair  parts  issued  with  the  item.    A part number or other reference number is followed by the applicable 5-digit Federal supply code for manufacturers in  parenthesis.    Repair  parts  quantities  included  in  kits and  sets  are  shown  in  front  of  the  repair  part  name. Material    required    for    manufacturer    or    fabrication    is identified. 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, pr, etc. e.    Quantity  Incorporated  in  Unit.    Indicates  the quantity of the item used in the assembly group. A   "V"   appearing   in   this   column   in   lieu   of   a   quantity indicates   that   a   definite   quantity   cannot   be   indicated (e.g., shims, spacers, etc.). f.  15-Day Organizational Maintenance Allowance. (1)  The  allowance  columns  are  divided  into  four subcolumns.  Indicated in  each  subcolumn  opposite  the first appearance of each item  is  the  total  quantity  of  the items authorized for the number of equipments supported.    Subsequent  appearances  of  the  same  item will have the letters "REF" in the allowance column.  To locate  the  referenced  item,  locate  the  FSN  or  reference number   in   the   index.      The   earliest   figure   and   item number is the referenced item.  Items authorized for use as required but not for initial stockage are identified with an asterisk in the allowance column. (2)  The   quantitative   allowance   for   organizational level   of   maintenance   represents   one   initial   prescribed load  for  a  15-day  period  for  the  number  of  equipments supported.  Units authorized additional prescribed loads, multiply the number of prescribed loads by the quantity in the appropriate density column to determine the number of repair parts authorized. (3)    To    determine    allowances    when    supporting more   than   100   of   these   equipments:   First,   divide   the number  of  equipments  supported  by  100  by  moving  the decimal  two  spaces  left;  second,  multiply  the  result  by the  quantity  in  the  51-100  density  column.      Example, authorized  allowance  for  51-100  equipments  is  12;  for 140 equipments, multiply 12 by 1.40 or 16.80 rounded off to 17 parts required. (4)   Subsequent   changes   to   allowances   will   be limited  as  follows:  No  change  in  the  range  of  items  is authorized.  If additional items are considered necessary, recommendation should be forwarded to the U.  S.  Army Mobility  Equipment  Command  for  exception  or  revision to  the  allowance  list.    Revisions  to  the  range  of  items authorized  will  be  made  by  the  U.    S.    Army  Mobility Equipment Command based upon engineering experience, demand data, or TAERS information. g.  30-Day DS Maintenance Allowances. (1) The allowance columns are divided into three subcolumns.  Indicated in each subcolumn, opposite the first appearance of each item, is the total quantity of items authorized for the number of equipments supported.  Subsequent appearances of the same item will have the letters "REF" in the applicable allowance column.  To locate the referenced item locate the FSN or reference number in the index.  The earliest figure and item number is the referenced item.  Items authorized for use as required but not for initial 2