TM 10-1670-251-12&P
C-6. How to Locate Repair Parts.
a. When National Stock Number or Part Number is
Not Known.
(1) First. Using the table of contents, determine the
functional group or subfunctional group to which the
item belongs. This is necessary since figures are
prepared for functional groups and subfunctional groups,
and listings are divided into the same groups.
(2) Second. Find the figure covering the functional
group or subfunctional group to which the item belongs.
(3) Third. Identify the items on the figure and note the
item number.
(4) Fourth. Refer to the Repair Parts List for the
figure to find the line entry for the item number noted on
the figure.
(5) Fifth. Refer to the Part Number Index to find the
NSN, if assigned.
b. When National Stock Number or Part Number is
Known.
(1) First. Using the Index of National Stock
Numbers and Part Numbers, find the pertinent National
Stock Number or Part Number. The NSN index is in
National Item Identification Number (NIIN) sequence
(see 4.a.(1)). The part numbers
C-17
