TM 9-2330 -267-14&PF-4. EXPLANATION OF COLUMNS (SECTION IV) (Con’t).(6) PART NUMBER Column. Indicates the primary number used by the manufacturer (individual,firm, corporation, or Government activity), which controls the design and characteristics of the item by meansof its engineering drawings, specifications standards and inspection requirements to identify an item or range ofitems.F-5. SPECIAL INFORMATION.-.a.Usable On Code. The usable on code appears in the lower left corner of the Description columnheading, Usable on codes are shown as “UOC: . . . . . . . . . “ in the Description column (justified left) on the firstline applicable item description/nomenclature. Uncoded items are applicable to all models. Identification of theusable on codes used in this RPSTL are:CodeUsedOn292Model 149997Model 149A1STLModel 149A2b. FabricationInstructions.Bulk materiels required to manufacture items are listed in the Bulk MaterielFunctional Group of this RPSTL. Part numbers for bulk materiels are also referenced in the DESCRIPTION columnof the line item entry for the item to be manufactured/fabricated. Detailed fabrication instructions for itemssource coded to be manufactured or fabricated are found in Appendix G of this manual.c.Assembly Instructions. Detailed assembly instructions for items source coded to be assembledfrom component spare/repair parts are found in Chapters 4 and 5. Items that make up the assembly are listedimmediately 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 FIG. column will have an index number shownin the item column. This index number is a cross-reference between the National Stock Number/Part NumberIndex and the bulk materiel list in Section Il.f. Associated Publications. Not Applicable.F-6. HOW TO LOCATE REPAIR PARTS.a.WhenNationalStockNumberorPartNumberisNotKnown:(1) First. Using the Table of Contents, determine the assembly group or subassembly group towhich the item belongs. This is necessary since figures are prepared for assembly groups and subassemblygroups, and listings are divided into the same groups.(2) Second. Find the figure covering the assembly group or subassembly group to which the itembelongs.(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 Part Number Index, find the pertinent National StockNumber or Part Number. The NSN Index is in National Item Identification Number (NIIN) sequence [seeparagraph F-4.a(1)]. The part numbers in the Part Number Index are listed in ascending alphanumericsequence (see paragraph F-4.b) . Both indexes cross-reference you to the illustration/figure and item number ofthe 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.F-7. ABBREVIATIONS,For standard abbreviations see MlL-STD-12D, Military Standard Abbreviations for Use on Drawings,Specifications, Standards, and in Technical Documents.F-6
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