Item Identification Number (NIIN) sequence (see
6. How to Locate Repair Parts.
paragraph 4.a.(1)). The part numbers in the Part
a. When National Stock Num ber or Part Number is
Number index are listed in ascending alphanumeric
sequence (see paragraph 4.b). Both indexes cross-
reference you to the illustration/figure and item number
Using the table of contents,
of the item you are looking for.
determine the assembly group or subassembly group to
which the item belongs. This is necessary since figures
(2) Second. Turn to the figure and item
are prepared for assembly groups and subassembly
number, verify that the item is the one you're looking for,
groups, and listings are divided into the same groups.
then locate the item number In the repair parts list for the
(2) Second. Find the figure covering the
assembly group or subassembly group to which the item
(3) Third. Identify the item on the figure and
For standard abbreviations see MIL-STD-12D, Military
use the Figure and Item Number Index to find the NSN.
Standard Abbreviations for Use on Drawings,
b. When National Stock Number or Part Number is
(1) First Using the National Stock Number or
National Item Identification Number
Part Number Index, find the pertinent National Stock
(consists of the last 9 digits of the NSN)
Number or Part Number. The NSN index is in National
Repair Parts and Special Tools List