Special Information

TM 11-5815-334-20P

the item to be assembled.

Recoverability

c. The following publications pertain to the AN/-

Definition

codes

H --Reparable item. When uneconomically reparable,

GRC-122, AN/GRC-122A, AN/GRC-122B, AN/-

condemn and dispose at the general support

GRC-122C, AN/GRC-142, AN/GRC-142A, AN/-

level.

GRC-142B and AN/GRC-142C and its components

D --Reparable item. When beyond lower level repair

TM 5-4520-236-14, Heater, Space, Portable: Air Circu-

capability, return to depot. Condemnation and

lating Type: Gasoline; 15,000 BTU/hr; Electric Motor

disposal not authorized below depot level.

Driven Blower (Hunter Manufacturing Company

L --Reparable item. Repair, condemnation, and dis-

Model UH48B Type, III)

posal not authorized below depot/secialized

TM 5-4520-236-24P, Heater, Space, Portable: Air Circu-

repair activity level.

lating Type: Gasoline, 15,000 BTU/hr; Electric Motor

c. National Stock Number. Indicates the National stock

Driven Blower (Hunter Manufacturing Company

number assigned to the item and will be used for req-

Model UH48B, Type III)

uisitioning purposes.

TM 11-5038, Control Group AN/GRA-6

d. Part Number. Indicates the primary number used by

TM 11-5410-212-15P, Shelter, Electrical Equipment

the manufacturer (individual, company, firm, corpora-

5-318/G

tion, or Government activity), which controls the design

TM 11-5805-201-12, Telephone Set TA-312/PT

and characteristics of the item by means of its engineering

TM 11-5805-201-20P, Telephone Set TA-312/PT

drawings, specifications, standards, and inspection re-

TM 11-5805-387-15-1, Modem, Radio Teletypewriter

quirements to identify an item or range of items.

MD-522/GRC

NOTE

TM 11-5805-387-15-2, Radio Teletypewriter Modem

When a stock numbered item is requisitioned,

MD-522A/GRC

the repair part received may have a different part

TM 11-5805-387-20P-2, Modem, Radio Teletypewriter

number than the part being replaced.

MD-522/GRC

e. Federal Supply Code for Manufacturer (FSCM).

TM 11-5805-387-20P-2, Modem, Radio Teletypewriter

The FSCM is a 5-digit numeric code listed in SB 708-41/-

MD-522A/GRC

42 which is used to identify the manufacturer, distributor,

TM 11-5805-387-24P-1, Modem, Radio Teletypewriter

or Government agency, etc.

MD-522/GRC

f. Description. Indicates the Federal item name and, if

TM 11-5815-200-12, Teletypewriter Sets AN/FGC-20,

required, a minimum description to identify the item.

AN/FGC-20X, AN/FGC-21 , AN/FGC-64, AN/-

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

FGC-66, AN/FGC-67, AN/FGC-67X, AN/UGC-4,

the basic quantity of the listed item as used in performing

AN/UGC-29, AN/UGC-29X, and Teleprinter

the actual maintenance function. This measure is ex-

TT-259/FG

pressed by a two-character alphabetical abbreviation (e.g.;

TM 11-5815-238-12, Teletypewriter Sets AN/GGC-3

ea, in, pr, etc). When the unit of measure differs from the

and AN/GGC-3A and Teletypewriter Reperforator-

unit of issue, the lowest unit of issue that will satisfy the

Transmitters TT-76/GGC, TT-76A/GGC, TT-76B/-

required units of measure will be requisitioned,

GGC, and TT-76C/GGC

TM 11-5815-238-20P, Teletypewriter Sets AN/GGC-3

h. Quantity Incorporated in Unit. Indicates the quantity

of the item used in the breakout shown on the illustration

and AN/GGC-3A and Teletypewriter Reperforator-

figure, which is prepared for a functional group, subfunc-

Transmitters TT-76/GGC, TT-76A/GGC, TT-76B/-

tional group, or an assembly.

GGC, and TT-76C/GGC

TM 11-5815-334-12, Radio Teletypewriter Sets AN/-

4. Special Information

GRC-142, AN/GRC-142A, AN/GRC-142B, AN/-

a. Usable on code reference to the Plain, A, and B

GRC-122, AN/GRC-122A, and AN/GRC-122B

models of the AN/GRC-142(*) are applicable to the

TM 11-5815-338-15, Device, Low Level Signaling

respective models of the AN/GRC-122(*). All references

TT-523/GGC and TT-523A/GGC

to "duplex operation" refer to the AN/GRC-122(*).

TM 11-5815-602-12, Terminal, Communications AN/-

Identification of the usable on codes used in this publica-

UGC-74A(V)3

tion are:

TM 11-5815-602-20P, Terminal, Communications

Code

Used on

AN/UGC-74A(V)3

3G5

AN/GRC-142

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

AJY

AN/GRC-142A

TM 11-5820-467-25P, Antenna Group AN/GRA-50

3G7

AN/GRC-142B

TM 11-5820-489-20P, Control Group AN/GRA-6

EHH AND 3G5

AN/GRC-142C

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

b. Detailed assembly instructions for items source

AN/GRC-106A

coded to be assembled are found in TM 11-5815-334-12.

Assembly components are listed immediately following

TM 11-5820-520-20P-1, Radio Set AN/GRC-106

Change 1