How to Locate Repair Parts - TM-11-5820-520-20P-10006

TM 11-5820-520-20P-1

those published in TM 11-5820-520-34P-1. Only those

inspection requirements to identify an item or range of

parts assigned the third position SMR maintenance

items.

code ``C" or "O" are listed in the tabular listing;

NOTE

therefore, there may be a break in the item number se-

When a stock numbered item is requisitioned,

quence. Only illustrations containing organizational

the repair part received may have a different

authorized items appear in this manual.

part number than the part being replaced.

5. How to Locate Repair Parts

e. Federal Supply Code for Manufacturer (FSCM).

The FSCM is a 5-digit numeric code listed in SB 708-42

a. When National stock number or part number is

which is used to identify the manufacturer, distributor,

unknown.

or Government agency, etc.

(1) First. Using the table of contents, determine

f. Description. Indicates the Federal item name and,

the functional group within which the item belongs.

if required, a minimum description to identify the item.

This is necessary since illustrations are prepared for

g. Unit of Measure (U/M). Indicates the standard of

functional groups and listings are divided into the

the basic quantity of the listed item as used in perform-

same groups.

ing the actual maintenance function. This measure is

(2) Second. Find the illustration covering the

expressed by a two-character alphabetical abbrevia-

functional group to which the item belongs.

tion (e.g., ea, in, pr, etc). When the unit of measure

(3) Third. Identify the item on the illustration and

differs from the unit of issue, the lowest unit of issue

note the illustration figure and item number of the

that will satisfy the required units of measure will be

item.

requisitioned.

(4) Fourth. Using the Repair Parts Listing, find

h. Quantity Incorporated in Unit. Indicates the

the figure and item number noted on the illustration.

quantity of the item used in the breakout shown on the

b. When National stock number or part number is

illustration figure, which is prepared for a functional

known.

group, subfunctional group, or an assembly.

(1) First. Using the Index of National Stock Num-

bers and Part Numbers, find the pertinent National

4. Special Information

stock number or part number. This index is in NIIN se-

a. The following publications pertain to the

quence followed by a list of part numbers in

AN/GRC-106 and its components:

alphameric sequence, cross-referenced to the illustra-

TM 11-5820-467-15, Antenna Group AN/GRA-50

tion figure number and item number.

TM 11-5820-467-24P, Antenna Group AN/GRA-50

(2) Second. After finding the figure and item

TM 11-5820-520-12, Radio Sets AN/GRC-106 and

number, locate the figure and item number in the

AN/GRC-106A

repair parts list.

TM 11-5965-222-14P, Dynamic Loudspeaker

6. Abbreviations

LS-166/U

Not applicable.

b. The illustrations in this manual are identical to

(Next printed page is 4.1)