(4)  Fig. column.  This column lists the number of the figure where the item is identified/located in section II and section III. (5)  Item column.  The item number is that number assigned to the item as it appears in the figure referenced in the adjacent figure number column. 5.   Special Information. 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 of applicable item description/nomenclature. Uncoded items are applicable to all models and title description will indicate all M998, M998A1, and M998A2 models. Identification of the Usable on Codes used in the RPSTL are: Code Used On Code Used On Code Used On AVY M1097A1 B16 M996A1 H16 M996 A11 M966A1 B17 M1025A1 H17 M1025 A13 M998A1 B18 M1026A1 W/W H18 M1026 W/W A14 M1038A1 W/W B20 M1035A2 H20 M1035 A15 M997A1 B24 M1045A2 H21 M1037 A20 M1035A1 B25 M1043A2 H24 M1045 A24 M1045A1 C17 M1025A2 H25 M1043 A25 M1043A1 HVY M1097 H26 M1044 W/W A26 M1044A1 W/W H11 M966 H27 M1046 W/W A27 M1046A1 W/W H13 M998 H28 M1042 W/W BVY M1097A2 H14 M1038 W/W MMM M1121 B15 M997A2 H15 M997 NNN M1123 Code Used On HPM M1097 W/W and L119 Prime Mover Kit SLT M1097 W/W and S250 Shelter Kit KTV M1097 W/W and Towed Vulcan System Kit 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 TM 9-2320-280-20, TM 9-2320-280-34, and TM 9-2815-237-34. c.  Assembly Instructions.  Detailed assembly instructions for items source-coded to be assembled from component spare/repair parts are found in TM 9-2320-280-20 and TM 9-2320-280-34. 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 LCN group kits in section II. e.  Index Numbers.  Items which have the word BULK in the figure column will have an 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 II. f.  Associated Publications.  The publications listed below pertain to the 1-1/4 ton, 4x4, M998, M998A1, and M998A2 series vehicles and their components: TM 9-2320-280-10 Operator’s Manual TM 9-2320-280-10HR Hand Receipt, Operator’s Manual TM 9-2320-280-20 Unit Maintenance Manual TM 9-2320-280-34 Direct Support and General Support Maintenance Manual TM 9-2815-237-34 Direct Support and General Support Engine Maintenance Manual TM 9-2815-237-34P Direct Support and General Support Maintenance Repair Parts and Special Tools List 5 TM 9-2320-280-24P-1