First. Using the table of contents, determine the assembly or subassembly 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 groups.
Second. Find the figure covering the functional group or subfunctional group to which the item belongs.
Third. Identify the item on the figure and note the Figure and Item Number to find the NSN.
Fourth. Look in the repair parts list for the figure and item numbers. The NSNs and part numbers are on
the same line as the associated item numbers.
When National Stock Number or Part Number is Known.
First. If you have the national stock number, look in the STOCK NUMBER column of the National Stock
Number Index. The NSN is arranged in national item identification number (NIIN) sequence (see paragraph 4a). Note the
figure and item number next to the NSN.
Second. Turn to the figure and locate the item number. Verify the item is the one you are looking for.
C-7. ABBREVIATIONS. Abbreviations used in this manual are listed in MIL-STD-12.
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