C/’ode Explanation R Applied to repair parts (assemblies and compo- nents)    which    are    considered    economically    repair- able    at    direct    and    general    support    maintenance levels.     When     the     maintenance     capability     to     re- pair     these     items     does     not     exist,      they     are     nor- mally    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   evacu- ated   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     are     nor- mally     repaired     or     overhauled     at     depot     mainte- nance   activities. u Repair parts specifically selected for salvage by reclamation    units    because    of    precious    metal    con- tent,    critical    materials,    or    high    dollar    value    re- usable   casings   or   castings. b. Federal Stock Number.  Indicates the Fed- eral 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  subassem- blies  are  indented  under  major  assemblies.  The abbreviation “w/e“ when used as a part of the nomenclature,  indicates  the  Federal  stock  num- ber includes all armament, equipment, acces- sories, and repair parts issued with the item. A part number or other reference number is fol- lowed 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 manufacture or fabrication is identi- fied. d. Unit of Measure (U/M).  A 2 character alpha- betic abbreviation indicating the amount or quan- tity 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 e. . of a quantity indicates that a definite quantity cannot  be  indicated  (  g.,  shims,  spacers,  etc.  ) f.  Fifteen-Day  Organizational  Maintenance  Al- lowance. (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  ap- pearances  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  organiza- tional  level  of  maintenance  represents  one  initial prescribed load for a 15-day period for the num- ber  of  equipments  supported.  Units  authorized additional  prescribed  loads,  multiply  the  number of prescribed loads by the quantity in the ap- propriate density column to determine the num- ber of repair parts authorized. (3)  To  determine  allowances  when  support- ing more than 100 of these equipments: First, divide the number of equipments supported by 100 by moving the decimal two spaces left; sec- ond, multiply the result by the quantity in the 51-100  density  column.  Example,  authorized  al- lowance 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 con- sidered necessary, recommendation should be for- warded to the U. S. Army Mobility Equipment Command  for  exception  or  revision  to  the  allow- ance list. Revisions to the range of items author- ized will be made by the U. S. Army Mobility Equipment Command based upon engineering ex- perience, demand data, or TAERS information. g.  Thirty-Day  DS/GS  Maintenance  Allow- ances. 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  appear- vi