SECTION I TM 9-2540-205-24&P 5.Special  Information. Use the following subparagraphs as applicable: a.  USABLE   ON   CODE.   The   usable   on   code appears  in  the  lower  left  corner  of  the  Description Column heading. Usable on codes are shown as “UOC: in the Description Column (justified left) on the first line following    applicable    item    description/nomenclature. Uncoded   items   are   applicable   to   all   models. Identification of the usable on codes used in the RPSTL are: Code Used On HE1 MF510B HE2 10560M HE3 10560C24 HE5 MF60A-24V HE6 V7S HE7 MF510C HE7 MF60B-24V HE8 I0560M24B1 H1O 1056OG b. FABRICATION INSTRUCTIONS. Bulk materials required  to  manufacture  items  are  listed  in  the  Bulk Material Functional Group of this RPSTL. Part numbers for bulk materials are also referenced in the description column  of  the  line  item  entry  for  the  item  to  be manufactured/fabricated. Detailed fabrication instructions for items source coded to be manufactured or fabricated are found in the appropriate appendices of this manual. c. ASSEMBLY INSTRUCTION.  Detailed assembly instructions  for  items  source  coded  to  be  assembled from  component  spare/repair  parts  are  found  in  the appropriate appendices of this manual. Items that make up  the  assembly  are  listed  immediately  following  the assembly  item  entry  or  reference  is  made  to  an applicable  figure. d. Kits. Line item entries for repair parts kits appear in group 9401 in Section Il. e. INDEX NUMBERS.  Items which have the word BULK in the figure column will have and index number shown in the item number column. This index number is a   cross-reference   between   the   National   Stock Number/Part Number Index and the bulk material list in Section Il. 6. How to Locate Repair Parts. a. When National Stock Number or Part Number is Not  Known. (1) First. Using the table of contents, determine the assembly group or subassembly group to which the item   belongs.   This   is   necessary   since   figures   are prepared   for   assembly   groups   and   subassembly groups, and listings are divided into the some groups. (2)   Second.   Find   the   figure   covering   the assembly group or subassembly group to which the item belongs. (3) Third. Identify the item on the figure and use the Figure and Item Number Index to find the NSN. b. When National Stock Number or Part Number is Known. (1) First. Using the National Stock Number or the Part Number Index, find the pertinent National Stock Number or Part Number. The NSN index is in National Item   Identification   Number   (NIIN)   sequence   (see 4.a(l ). The part numbers in the Part Number index are listed in ascending alphanumeric sequence (see 4. b). Both   indexes cross - reference    you    to    the illustration/figure and item number of the item you are looking for. (2) Second. Turn to the figure and item number, verify that the item is the one you’re looking for, then locate  the  item  number  in  the  repair  parts  list  for  the figure. 7. Abbreviations. For standard abbreviations see MlL-STD-1 2D, Military Standard   Abbreviations   For   Use   On   Drawings, Specifications, Standards And In Technical Documents. D  -  5