APPENDIX A
MIL-HDBK-162A
Volume 1 of 2
15 December 1965
EXAMPLES OF JETDS TYPE NUMBERS
TYPE NUMBER
INDICATES
AN/SRC-3( ).......................................... General reference set nomenclature for water surface radio communication set
No. 3
AN/SRC-3 ............................................. Original procurement set nomenclature applied against
AN/SRC-3A........................................... Modification set nomenclature applied against AN/SRC-3.
AN/APQ-13-T1( ). ................................. General reference training set nomenclature for the AN/APQ-13 set
A/APQ-13-T1 ........................................ Original procurement training set nomenclature applied against AN/APQ-13-
T1( ).
AN/APQ-13-TIA .................................... Modification training set nomenclature applied against AN/APQ-13-T1.
AN/UPT-T3( ) ........................................ General reference training set nomenclature for general utility radar transmitting
training set No. 3.
AN/UPT-T3 ........................................... Original procurement training set nomenclature applied against AN/UPT-T3( ).
AN/UPT-T3A. ........................................ Modification training set nomenclature applied against AN/UPT-T3.
T-51( )/ARQ-8 ....................................... General reference component nomenclature for transmitter No. 51, part of or
used with airborne radio special set No. 8.
T-51/AIRQ-8 ......................................... Original procurement component nomenclature applied against T-51( )/ARQ-8.
T-51A/ARQ-8 ........................................ Modification component nomenclature applied against T-51/ARQ-8.
RD-31( )/U ............................................ General reference component nomenclature for recorder-reproducer No. 31 for
general utility use, not part of a specific set.
RD-31/U ................................................ Original procurement component nomenclature applied against RD-31( )/U.
RD-31A/U ............................................. Modification component nomenclature applied against RD-31/U.
NOTES
1. This chart was formerly titled SUMMARY OF 3OINT NOMENCLATURE SYSTEM ("AN" SYSTEM) FOR
COMMUNICATION-ELECTRONIC EQUIPMENT.
2. The system indicator "AN" does not mean that the Army, Navy, and Air Force use the equipment but simply
that the type number was assigned in the JETDS System.
3. In the JETDS nomenclature system, nomenclature consists of a name followed by a type number. The
type number will consist of indicator letters shown on this chart and an assigned number.
4. The type number of an independent major unit not part of or used with a specific set will consist of a
component indicator, a number, the slant and such of the set or equipment indicator letters as apply. Example:
SB-5/PT would be the type number of a portable telephone switchboard for independent use.
5. Requests for nomenclature assignments will be submitted on the Department of Defense Form DD-1 and
prepared in accordance with the item names and description patterns promulgated by the office of the Assistant
Secretary of Defense (Supply and Logistics).
MODIFICATION LETTERS
Component modification suffix letters will be assigned for each modification of a component when detail parts and
subassemblies used therein are no longer interchangeable, but the component itself is interchangeable physically,
electrically, and mechanically.
1A-5
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