Code format as follows:
ZNonreparable item. When unserviceable, condemn
and dispose at the level, indicated in position 3.
HReparable item. When uneconomically reparable,
condemn and dispose at the general support. level.
DReparable item. When beyond lower level repair
capability, return to depot. Condemnation and
disposal not authorized below depot level.
LReparable item. Repair, condemnation, and disposal
not authorized below depot/specialized repair
c. National Stock Number. Indicates the National
stock number assigned to the item and will be used for
d. Part Number. Indicates the primary number used
by the manufacturer (individual, company, firm,
corporation, or Government activity), which controls the
The following publications pertain to the
design and characteristics of the item by means of its
AN/GRC-50(V)1 thru 5 and the AN/GRC-50A(V)1 thru
engineering drawings, specifications, standards, and
11 and their components:
inspection requirements to identify an item or range of
TM 11-5820-461-12, Radio Sets AN/GRC50(V)1,
TM 11-5820-517-14P, Antenna AT-903/G
TM 11-5820-538-12, Mast AB-577/GRC and
When a stock numbered item is requisitioned, the
Extension Kit, Mast MK-806/GRC
repair part received may have a different part number
TM 11-6110-245-15, Voltage Regulator CN-
than the part being replaced.
e. Federal Supply Code for Manufacturer (FSCM).
c. The illustrations in this manual are identical to
The FSCM is a 5-digit numeric code listed in SB 708-42
those published in TM 11-5820-461-34P. Only those
which is used to identify the manufacturer, distributor, or
parts assigned the third position SMR maintenance code
Government agency, etc.
"C" or "O" are listed in the tabular listing; therefore,
f. Description. Indicates the Federal item name and,
there may be a break in the item number sequence. Only
if required, a minimum description to identify the item.
illustrations containing organizational authorized items
g. Unit of Measure (U/M). Indicates the standard of
appear in this manual.
the basic quantity of the listed item as used in performing
5. How to Locate Repair Parts
the actual maintenance function. This measure is
expressed by a two-character alphabetical abbreviation
(e.g., ea. in, pr, etc). When the unit of measure differs
a. When National stock number or part number is
from the unit of issue, the lowest unit of issue that will
satisfy the required units of measure will be
(1) First. Using the table of contents, determine the
functional group within which the item belongs. This is
h. Quantity Incorporated in Unit. Indicates the
necessary since illustrations are prepared for functional
quantity of the item used in the breakout shown on the
groups and listings are divided into the same groups.
illustration figure, which is prepared for a functional
(2) Second. Find the illustration covering the
group, subfunctional group, or an assembly.
functional group to which the item belongs.
(3) Third. Identify the item on the illustration and
4. Special Information
note the illustration figure and item number of the item.
(4) Fourth. Using the Repair Parts Listing, find the
a. Usable on codes are shown in the description
figure and item number noted on the illustration.
column. Uncoded items are applicable to all models.
b. When National stock number or part number is
Identification of the usable on codes used in this