Quantcast When National Stock Number or part number is known. (1) First.  If you have the national stock number, look in the STOCK NUMBER column of the National Stock Number Index.  The NSN is arranged in national item identification number (NIIN) sequence (see paragraph 4a).  Note the figure and item number next to the NSN. (2) Second.  Turn to the figure and locate the item number.  Verify that the item is the one you are looking for. c. When P/N is known. (1) First.  If you have the part number and not the NSN, look in the PART NUMBER column of the P/N index.  Identify the figure and item number. (2) Second.  Look up the item on the figure in the applicable repair parts list. 7. ABBREVIATIONS (if applicable) NOT APPLICABLE 7

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