When the unit of measure differs from the unit of
Z - Nonreparable. No repair is authorized.
issue, the lowest unit of issue that will satisfy the
required units of measure will be requisitioned.
(3) Recoverability code. Recoverability codes
h. Quantity Incorporated in Unit. Indicates
are assigned to support items to indicate the dis-
the quantity of the item used in the breakout
position action on unserviceable items. The recov-
shown on the illustration figure, which is prepared
erability code is entered in the fifth position of the
for a functional group, subfunctional group, or an
Uniform SMR Code format as follows:
4. Special Information
Z - Nonreparable item. When unserviceable, con-
a. Usable on codes are shown in the description
demn and dispose at the level indicated in
column. Uncoded items are applicable to all
models. Identification of the usable on codes used
in this publication are:
O - Reparable item. When uneconomically repara-
ble, condemn and dispose at organizational
F - Reparable item. When uneconomically repara-
b. The following publication pertains to the
ble, condemn and dispose at the direct sup-
RD-173/UN and RD-173A/UN and their compo-
D - Reparable item. When beyond lower level re-
TM 11-5835-212-15, Sound Recorder-Reproducer
pair capability, return to depot. Condemna-
Sets RD-173/UN and RD-173A/UN
tion and disposal not authorized below
5. How to Locate Repair Parts
c. National Stock Number. Indicates the Na-
a. When National stock number or part number
tional stock number assigned to the item and will
be used for requisitioning purposes.
(1) First. Using the table of contents, deter-
d. Part Number. Indicates the primary number
mine the functional group within which the item
used by the manufacturer (individual, company,
belongs. This is necessary since illustrations are
firm, corporation, or Government activity), which
prepared for functional groups and listings are
controls the design and characteristics of the item
divided into the same groups.
by means of its engineering drawings, specifica-
(2) Second. Find the illustration covering
tions, standards, and inspection requirements to
the functional group to which the item belongs.
identify an item or range of items.
(3) Third. Identify the item on the illustra-
tion and note the illustration figure and item num-
ber of the item.
When a stock numbered item is requisi-
(4) Fourth. Using the Repair Parts Listing,
tioned, the repair part received may have
find the figure and item number noted on the
a different part number than the part
b. When National stock number or part number
e. Federal Supply Code for Manufacturer
(FSCM). The FSCM is a 5-digit numeric code
(1) First. Using the Index of National Stock
listed in SB 708-42 which is used to identify the
Numbers and Part Numbers, find the pertinent
manufacturer, distributor, or Government agency,
National stock number or part number. This index
is in NIIN sequence followed by a list of part
f. Description. Indicates the Federal item name
numbers in alphameric sequence, cross-referenced
and, if required, a minimum description to iden-
to the illustration figure number and item number.
tify the item.
(2) Second. After finding the figure and item
g. Unit of Measure (U/M). Indicates
number, locate the figure and item number in the
standard of the basic quantity of the listed item as
repair parts list.
used in performing the actual maintenance func-
tion. This measure is expressed by a two-character
alphabetical abbreviation (e.g, ea, in, pr, etc.).
(Next printed page is 4.1.)