TM 55-4920-402-13&P(3) Third. Identify the item on the figure and note the item number.(4) Fourth. Refer to the Repair Parts List for the figure to find the part number for the item numbernoted on the figure,(5) Fifth. Refer to the Part Number Index to find the NSN, if assigned.b. When National Stock Num ber or Part Number is Knowm(1) First. Using the Index of National Stock Numbers and Part Numbers, find the pertinent NationalStock Number or Part Number. The NSN index is in National Item Identification Number (NIIN) sequence(see C-4.a(l)). The part numbers in the Part Number index are listed in ascending alphanumeric sequence(see C-4.b.). Both indexes cross-reference you to the illustration figure and item number of the item you arelooking for.(2) Second. After finding the figure and item number, verify that the item is the one you’re lookingfor, then locate the item number in the repair parts list for the figure.Change 5C-7
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