TM 11-6625-2978-24P
This is necessary since illustrations are prepared for
d. Federal Supply Code for Manufacturer (FSCM).
functional groups and listings are divided into the
The FSCM is a 5-digit numeric code listed in SB
same groups.
708-41/42 which is used to identify the manufacturer,
(2) Second. F i n d t h e illustration covering the
distributor, or Government agency, etc.
functional group to which the item belongs.
e. Part Number. Indicates the primary number used
(3) Third. Identify the item on the illustration
by the manufacturer (individual, company, firm, cor-
and note the illustration figure and the item number of
poration, or Government activity), which controls the
the item.
design and characteristics of the item by means of its
(4) Fourth. Using the Repair Parts Listing, find
engineering drawings, specifications, standards, and
the figure and item number noted on the illustration.
inspection requirements to identify an item or range of
b. When the National stock number or part number
items.
is known.
(1) First. Using the Index of National Stock
NOTE
Numbers and Part Numbers, find the pertinent Na-
When a stock numbered item is requisition-
tional stock number or part number. This index is in
ed, the repair part received may have a dif-
NIIN sequence followed by a list of part numbers in
ferent part number than the part being
alphameric sequence, cross-referenced to the illustra-
replaced.
tion figure number and item number.
f. Description. Indicates the Federal item name
(2) S e c o n d . After finding the figure and item
and, if required, a minimum description to identify
number, locate the figure and item number in the
the item.
repair parts list.
g. Unit of Measure (U/M). Indicates the standard of
the basic quantity of the listed item as used in perform-
6. Abbreviations
ing the actual maintenance function. This measure is
Not applicable.
expressed by a two-character alphabetical abbrevia-
tion (e.g., ea, in, pr, etc). When the unit of measures
differs from the unit of issue, the lowest unit of issue
that will satisfy the required units of 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 functional
group, subfunctional group, or an assembly,
4. Special Information
a. The following publications pertain to the PP-
7549/U and its components:
TM 11-6625-2978-14, Power Supply PP-7549/U (To be
published)
b. National stock numbers (NSN'S) that are missing
from P source coded items have been applied for and
will be added to this TM by future change/revision
when they are entered in the Army Master Data File
(AMDF). Until the NSN'S are established and publish-
ed, submit exception requisitions to: Commander, US
Army Communications and Electronics Materiel
Readiness Command, ATTN: DRSEL-MM, Fort Mon-
mouth, NJ 07703 for the part required to support your
equipment.
5. How to Locate Repair Parts
a. When National stock number or part number is
unknown.
(1) First. Using the table of contents, determine
the functional group within which the item belongs.
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