CHAPTER 10 STOCK CONTROL The primary function of any supply organization is to ensure the availability of material to support the needs of its customers. To accomplish this function, supply must manage all material in stock continuously and judiciously. This chapter provides information about stock  control  afloat.  However,  some  of  the  procedures described may also apply to stock control ashore. The implementation of computer systems to gather and analyze supply data has made inventory manage- ment  easier  to  accomplish.  There  are  several  kinds  of computer  systems  used  throughout  the  Navy.  Aboard ship,  the  AK  working  in  stock  control  will  most  likely use  computer  systems.  These  computers  use  the Shipboard  Uniform  Automated  Data  Processing  System (SUADPS)  and  Naval  Aviation  Logistics  Command Management   Information   System   (NAACOMIS) procedures.  Personnel  assigned  to  stock  control  afloat should   attend   the   SUADPS-RT   and   NALCOMIS training.  This  training  will  help  personnel  become familiar with the procedures for processing different transactions and reports. Stock control uses different methods to perform inventory  control  functions.  In  mechanized  activities, stock control uses several kinds of reports in managing stock  items.  Thee  computer  produces  the  mechanized reports used by stock control or supply personnel. The person  requesting  the  report  can  select  any  of  the optional criteria provided by the computer system to produce  the  specific  report.  The  person  requesting  the report fills out and submits the request form to the systems  coordinate.  The  systems  coordinator  will include  the  request  for  the  report  in  the  planning calendar. Supply personnel can use the mechanized reports to analyze various situations in stock posture and to check completed transactions. As an AK, you must be able to perform stock control functions.  The  AK  working  in  stock  control  is responsible  for  maintaining  stock  records,  conducting inventory,  or  maintaining  files.  Personnel  working  in stock control must be familiar with the procedures used by   other   divisions   in   supply   because   all   supply personnel  performing  receipts,  stowage,  or  issues generate transactions that affect records in stock control. While in stock control, you will come in contact with certain  supply  terms  used  in  inventory  management. You  must  familiarize  yourself  with  these  terms. SUPPLY AND STOCK MANAGEMENT TERMINOLOGY The first step in learning stock control procedures is  to  become  familiar  with  the  terminology  used throughout  the  various  levels  of  supply  and  stock management. The following texts describes some of these terms. Average  Endurance  Level—   The  quantity  of material normally required to be on hand to sustain operations  for  a  stated  period  without  augmentation.  It is the median between the safety level and stockage objective;  that  is,  safety  level  plus  one-half  of  the operating  level. Carried Items—  This term refers to items in stock For  example,  those  items  that  the  supply  department maintains  stock  records  showing  current  on-hand balances. Consumption  Document—  This form is used to effect, record or report issues of material. Consumption occurs upon issue of material regardless of when it was used. Demand/Quantity—   The  quantity  of  an  item requested  and  issued  regardless  of  the  number  of requests involved. This term is synonymous with the term usage. Demand-Based  Item  (DBI)—  The  same  definition as peacetime operating stock (POS) items. Direct  Turnover  (DTO)—   This  term  refer  to material  ordered  from  sources  external  to  the  ship  or station. Immediately upon receipt, supply personnel turnover  the  material  to  the  using  department  or squadron.  Such  material  is  required  for  immediate  or planned  use. Frequency of Demand— The number of requests (hits) that an item experiences within a given time frame.  For  example,  if  there  are  five  requisitions processed for an item within the given time frame, the frequency  of  demand  is  five.  The  total  quantity 10-1