"V" appearing in this column in lieu of a quantity in-
dicates that no specific quantity is applicable, (e.g.,
Z Nonreparable item. When unserviceable, con-
shims, spacers, etc).
demn and dispose at the level indicated in position
4. Special Information
H Reparable item. When uneconomically repara-
The following publications pertain to the AN/USM-
ble, condemn and dispose at the general support
98A and its components:
c. National Stock Number. Indicates the National
USM-98A and AN/USM-98B.
stock number assigned to the item and will be used
for requisitioning purposes.
USM-98A and AN/USM-98B.
d. Part Number. Indicates the primary number
u s e d by the manufacturer (individual, company,
5. How to Locate Repair Parts
firm, corporation, or Government activity), which
a. When National stock number or part number is
controls the design and characteristics of the item
by means of its engineering drawings, specifica-
(1) First. Using the table of contents, deter-
t i o n s , standards, and inspection requirements to
mine the functional group within which the item be-
identify an item or range of items.
longs. This is necessary since illustrations are pre-
pared for functional groups and listings are divided
When a stock numbered item is requisi-
into the same groups.
tioned, the repair part received may have a
(2) Second. Find the illustration covering the
different part number than the part being
functional group to which the item belongs.
(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 Na-
of the basic quantity of the listed item as used in
tional stock number or part number. This index is in
performing the actual maintenance function. This
NIIN sequence followed by a list of part numbers in
measure is expressed by a two-character alphabeti-
alphanumeric sequence, cross-referenced to the illus-
cal abbreviation (e.g., ea, in, pr, etc). When the unit
tration 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 the
measure will be requisitioned.
repair parts list.
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. A
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