7-6Figure 7-3.—Management List-Navy (ML-N).Table 7-1.—ML-N ContentsCOLUMN TITLEDATA PRINTEDACTION CODEA one-position alpha code that designates the type of action requiredby the file maintenance computer to enter/update/delete data invarious cyclic or master filesNATIONAL STOCK NUMBERA 13-digit number that uniquely identifies an item of supplySOURCE OF SUPPLYThe routing identifier of the managing activity, which is a potentialsource of supplyACQUISITION ADVICE CODEA code indicating how (as distinguished from where) and under whatrestrictions an item will be acquiredQUANTITY PER UNIT PACKA code representing the number of units of issue included in the firsttie, wrap, or container in which the NSN is prepared for shipmentUNIT OF ISSUE(LIMIT)The abbreviations printed represent determinate amounts orquantities that have been established as standards of measurementfor issue of materials or suppliesUNIT PRICEThe dollars and cents of the item per unit of issue (For materialcontrol code “A” and acquisition advice code “L,” prices areestimated.)SHELF LIFE CODEA code indicative of the interval of shelf-life time (based onestablished technical factors) beyond which the item may not besatisfactory for use (See NAVSUPINST 4410.52 for furtherguidance.)SECURITYCLASSIFICATION CODEA code indicative of the degree of security assigned an itemREPAIRABILITY CODEA one-position code that indicates whether or not an item isrepairable (Repairability code for Navy-managed items is thematerial control code [MCC].)COGNIZANCE CODE (SYMBOL)A code designating a segment of material for management by aspecific inventory manager and the funding involved; that is, odddigit for Navy stock fund (NSF), even digit for APA
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