C- 7. HOW TO LOCATE REPAIR PARTS.
a. When National Stock Number or Part Number is Not Known:
First. Using the table of contents, determine the assembly group to which the item belongs. This is necessary
since figures are prepared for assembly groups and subassembly groups, and listings are divided into the same
Second. Find the figure covering the assembly group or subassembly group to which the item belongs.
Third. Identify the item on the figure and use the part number or NSN shown.
b. When National Stock Number or Part Number is Known:
First. Using 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 (see C-4). 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.