4. Special Information
a. The following publication pertains to the
Z Nonreparable item. When unserviceable, con-
AN/ARC-102 and its component
demn and dispose at the level indicated in posi-
TM 11-5821-248-12, Radio Set AN/ARC-102
b. The illustrations in this manual are identical to
D Reparable item. When beyond lower level
those published in TM 11-5821-248-34P. Only those
repair capability, return to depot. Condemna-
parts assigned the third position SMR maintenance
tion and disposal not authorized below depot
code "C" or "O' are listed in the tabular listing;
therefore, there may be a break in the item number
c. National Stock Number. Indicates the National
sequence. Only illustrations containing organiza-
stock number assigned to the item and will be used
tional authorized items appear in this manual.
for requisitioning purposes.
d. Part Number. Indicates the primary number
5. How to Locate Repair Parts
used by the manufacturer (individual, company,
a. When National stock number or part number is
firm, corporation, or Government activity), which
controls the design and characteristics of the item
by means of its engineering drawings, specifica-
(1) First. Using the table of contents, deter-
mine the functional group within which the item
tions, standards, and inspection requirements to
belongs. This is necessary since illustrations are
identify an item or range of items.
prepared for functional groups and listings are
divided into the same groups.
When a stock numbered item is requisi-
(2) Second. Find the illustration covering the
tioned, the repair part received may have a
functional group to which the item belongs.
different part number than the part being
(3) Third Identify the item on the illustration
and note the illustration figure and item number of
e . Federal Supply Code for Manufacturer
(FSCM). The FSCM is a 5-digit numeric code listed
(4) Fourth. Using the Repair Parts Listing,
in SB 708-42 which is used to identify the manufac-
find the figure and item number noted on the illus-
turer, distributor, or Government agency, etc.
f. Description. Indicates the Federal item name
b. When National stock number or part number
and, if required, a minimum description to identify
(1) First. Using the Index of National Stock
g. Unit of Measure (U/M). Indicates the standard
Numbers and Part Numbers, find the pertinent
of the basic quantity of the listed item as used in
National stock number or part number. This index is
performing the actual maintenance function. This
in NIIN sequence followed by a list of part numbers
measure is expressed by a two-character alphabeti-
in alphameric sequence, cross-referenced to the
cal abbreviation (e.g., ea, in, pr, etc). When the unit
illustration figure number and item number.
of measure differs from the unit of issue, the lowest
(2) Second. After finding the figure and item
unit of issue that will satisfy the required units of
number, locate the figure and item number in repair
measure will be requisitioned.
h. Quantity Incorporated in Unit. Indicates the
quantity of the item used in the breakout shown on
the illustration figure, which is prepared for a func-
tional group, subfunctional group, or an assembly.
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