(2) Second. Find the figure covering the functional group to which the item belongs.
(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 the Part Number Index, find the pertinent National Stock
Number or Part Number. The NSN index is in National Item Identification Number (NIIN) sequence. The part numbers
in the Part Number Index are listed in ascending alphanumeric sequence. 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 are looking for, then
locate the item number in the repair parts list for the figure.
National Item Identification
Number (consists of the last
9 digits of the NSN)
Reference (item listed in a
Repair Parts and Special
Variable (quantity may vary from
application to application)