MK-733/ARC-54 and its components:
Reparable item. When beyond lower level
TM 11-5840-270-24-1, Indicator ID-48/ARN
repair capability, return to depot. Con-
TM 11-6625-601-12, Maintenance Kit, Electronic
demnation and disposal not authorized
below depot level.
b. The illustrations in this manual are identical to
c. National Stock Number. Indicates the National
those published in TM 11-6625-601-34P. Only those
stock number assigned to the item and will be used
parts assigned the third position SMR maintenance
for requisitioning purposes.
code "C" or "O" are listed in the tabular listing;
d. Part Number. Indicates the primary number
therefore, there may be a break in the item number
used by the manufacturer (individual, company,
sequence. Only illustrations containing organiza-
firm, corporation, or Government activity), which
tional authorized items appear in this manual.
controls the design and characteristics of the item by
means of its engineering drawings, specifications,
5. How to Locate Repair Parts
standards, and inspection requirements to identify
an item or range of items.
a. When National stock number or part number is
When a stock numbered item is re-
(1) First. Using the table of contents, determine
quisitioned, the repair part received may
the functional group within which the item belongs.
have a different part number than the part
This is necessary since illustrations are prepared for
functional groups and listings are divided into the
e. Federal Supply Code for Manufacturer (FSCM).
The FSCM is a 5-digit numeric code listed in SB
(2) Second. Find the illustration covering the
708-42 which is used to identify the manufacturer,
functional group to which the item belongs.
distributor, or Government agency, etc.
(3) Third. Identify the item on the illustration
f. Description. Indicates the Federal item name
and note the illustration figure and item number of
and, if required, a minimum description to identify
(4) Fourth. Using the Repair Parts Listing, find
g. Unit of Measure (U/M). Indicates the standard of
the figure and item number noted on the illustration.
the basic quantity of the listed item as used in
performing the actual maintenance function. This
measure is expressed by a two-character alphabeti-
(1) First. Using the Index of National Stock
cal abbreviation (e.g., ea, in, pr, etc). When the unit of
Numbers and Part Numbers, find the pertinent
measure differs from the unit of issue, the lowest unit
National stock number or part number. This index is
of issue that will satisfy the required units of
in NIIN sequence followed by a list of part numbers
measure will be requisitioned.
in alphameric sequence, cross-referenced to the
h. Quantity Incorporated in Unit. Indicates the
illustration figure number and item number.
quantity of the item used in the breakout shown on
(2) Second. After finding the figure and item
the illustration figure, which is prepared for a
number, locate the figure and item number in the
functional group, subfunctional group, or an assem-
repair parts list.
4. Special Information
a. The following publications pertain to the
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