may be a break in the item number sequence. Only
illustrations containing organizational authorized items
appear in this manual.
When a stock numbered item is requisitioned,
the repair part received may have a different part
How to Locate Repair Parts
number than the part being replaced.
e. Federal Supply Code for Manufacturer (FSCM).
a. When National stock number or part number is
The FSCM is a 5-digit numeric code listed in SB 708-42
Using the table of contents,
which is used to identify the manufacturer, distributor, or
Government agency, etc.
determine the functional group within which the item
Description. Indicates the Federal item name
This is necessary since illustrations are
and, if required, a minimum description to identify the
prepared for functional groups and listings are divided
item. g. Unit of Measure (UIM). Indicates the standard
into the same groups.
Second Find the illustration covering the
of the basic quantity of the listed item as used in
functional group to which the item belongs.
performing the actual maintenance function.
Third. Identify the item on the illustration
measure is ex-pressed by a two-character alphabetical
abbreviation (e.g., ea, in, pr, etc). When the unit of
and note the illustration figure and item number of the
measure differs from the unit of issue, the lowest unit of
Fourth. Using the Repair Parts Listing, find
issue that will satisfy the required units of measure will
the figure and item number noted on the illustration.
h. Quantity Incorporated in Unit. Indicates the
b. when National stock number or part number is
quantity of the item used in the breakout shown on the
illustration figure, which is prepared for a functional
(1) First. Using the Index of National Stock
group, subfunctional group, or an assembly.
Numbers and Part Numbers, find the pertinent National
stock number or part number. This index is in NIIN
sequence followed by a list of part numbers in
alphameric sequence, cross-referenced to the illustration
a. The following publication pertains to the
figure number and item number.
AN/TPN-18 and its components: TM 11-5840-281-12,
(2) Second. After finding the figure and item
Radar Set AN/TPN-18
number, locate the figure and item number in the repair
b. The illustrations in this manual are identical to
those published in TM 11-5840-281-34P. Only those
parts assigned the third position SMR maintenance code
"C" or "O" are listed in the tabular listing; therefore, there
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