(3) Third. Identify the item on the figure and use the Figure and Item Number Index to find the NSN.
When National Stock Number or Part Number is Known:
(1) First. Using the National Stock Number or Part Number Index, find the pertinent National Stock Number
or Part Number. The NSN index is in National Item Identification Number (NIIN) sequence (see
paragraph F-4.a.(1)). The part numbers in the Part Number index are listed in ascending alphanumeric
sequence (see paragraph F-4.b). Both indexes cross-reference you to the illustration/figure and item
number of the 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.
For standard abbreviations see MIL-STD-12D, Military Standard Abbreviations for Use on Drawings, Specifications,
Standards, and in Technical Documents.
NIIN ................. National Item Identification Number (consists of the last 9 digits of the NSN)
RPSTL ............. Repair Parts and Special Tools List