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DA PAM 735-5 Survey Officer's Guide. DA PAM 738-750 The Army Maintenance Management System (TAMMS/ETM)( Update3-14) ... NATIONAL STOCK NUMBER. (Source: DA Pam 710-2-2) The NSN is a two-part, 13-position number given to each item of supply that is listed in the Federal Catalog System (FCS). Each NSN is unique and represents only one item of supply. ................
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