code Explanation s Repair   parts   and  assemblies   which  are   economically  re- pairable  at DSU and GSU activities  and which normal- ly 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 evalua- tion and analysis  before final  disposition. T High dollar  value recoverable  repair  parts  which are sub- ject   to  special  handling   and  are  issued  on  an  exchange basis.  Such  repair  parts  are  normally  repaired  or over- hauled  at depot maintenance   activities. u Repair   parts  specifically   selected  for   salvage   by  recla- mation   units   because  of  precious   metal   content,   criti- cal  materials,    or  high  dollar   value  reusable   casings  or 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   in- dented   under   major   assemblies.   The   abbreviation “w/e”  when  used  as  a  part  of  the  nomenclature,  indi- cates   the   Federal   stock   number   includes   all   arma- ment,  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.   Re- pair   parts   quantities   included   in   kits   and   sets   are shown  in  front  of  the  repair  part  name.  Material  re- quired  for  manufacture  or  fabrication  is  identified. d. Unit of Measure (U/M).  A  two-character  alpha- betic   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   indi- cated  (e.g.,  shims,  spacers,  etc.). f.  Fifteen-Day  Organizational  Maintenance  Allow- ance. (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   equip- ments   supported.   Subsequent   appearances   of   the same  item  will  have  the  letters  “REF”  in  the  allow- ance  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  equip- ments   supported.   Units   authorized   additional   pre- scribed   loads,   multiply   the   number   of   prescribed loads  by  the  quantity  in  the  appropriate  density  col- umn   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  allowances  for  51-100  equip- ments  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. Thirty-Day DS/GS Maintenance Allowances. NOTE Allowances   in  GS  Column  are  for  GS  maintenance    only. (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   allow- ance  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  allow- ance  column. (2)  The  quantitative  allowances  for  DS/GS  levels of   maintenance   will   represent   initial   stockage   for   a 30-day  period  for  the  number  of  equipments  sup- ported. (3)   To   determine   allowances   when   supporting more   than   100   of   these   equipments:   First,   divide the  number  of  equipments  supported  by  100  by  mov- ing  the  decimal  two  places  left;  second,  multiply  the result  by  the  quantity  in  the  51-100  density  column. Example,   authorized   allowance   for   51-100   equip- ments  is  40;  for  150  equipments  multiply  40  by  1.50 or  60  parts  required. h.  One-Year  Allowance  Per  100  Equipments/Con- tingency  Planning  Purposes.  Indicates  opposite  the first   appearance   of   each   item   the   total   quantity   re- quired  for  distribution  and  contingency  planning purposes.  The  range  of  items  indicates  total  quanti- i v