TM 11-6625-2575-24P
and its components:
d. Part Number. Indicates the primary number used by
TM 11-6625-2575-14, Generator, Sweep Signal AN/-
the manufacturer (individual, company, firm, corpora-
USM-203A.
tion, or Government activity), which controls the design
and characteristics of the item by means of its engineering
5. How to Locate Repair Parts
drawings, specifications, standards, and inspection re-
a. When National stock number or part number is
quirements to identify an item or range of items.
unknown.
NOTE
(1) First. Using the table of contents, determine the
When a stock numbered item is requisitioned,
functional group within which the item belongs. This is
the repair part received may have a different part
necessary since illustrations are prepared for functional
number than the part being replaced.
groups and listings are divided into the same groups.
e. Federal Supply Code for Manufacturer (FSCM).
(2) Second. Find the illustration covering the func-
The FSCM is a 5-digit numeric code listed in SB 708-4l/-
tional group to which the item belongs.
42 which is used to identify the manufacturer, distributor,
(3) Third. Identify the item on the illustration and
or Government agency, etc.
note the illustration figure and item number of the item.
f. Description. Indicates the Federal item name and, if
(4) Fourth. Using the Repair Parts Listing, find the
required, a minimum description to identify the item.
figure and item number noted on the illustration.
g. Unit of Measure (U/M). Indicates the standard of
b. When National stock number or part number is
the basic quantity of the listed item as used in performing
known.
the actual maintenance function. This measure is ex-
(1) First. Using the Index of National Stock Num-
pressed by a two-character alphabetical abbreviation (e.g.,
bers and Part Numbers, find the pertinent National stock
ea, in, pr, etc). When the unit of measure differs from the
number or part number. This index is in NIIN sequence
unit of issue, the lowest unit of issue that will satisfy the
followed by a list of part numbers in alphameric sequence,
required units of measure will be requisitioned.
cross-referenced to the illustration figure number and
h. Quantity Incorporated in Unit. Indicates the quantity
item number.
(2) Second. After finding the figure and item num-
of the item used in the breakout shown on the illustration
figure, which is prepared for a functional group, subfunc-
ber, locate the figure and item number in the repair parts
tional group, or an assembly.
list.
6. Abbreviations
4. Special Information
Not applicable.
The following publication pertains to the AN/USM-203A
(Next printed page is 4.1.)
2