[ARC5] [Milsurplus] Format of Military Nomenclature (JAN)

Wed Sep 25 16:38:36 EDT 2013

Hi Mike,

Thanks very much.

A bit of background: Chris has been working on a mil manual archive.

As a result of my difficulty in finding manuals, I suggested the best way
to attack the issue was to cross-reference all the existind data at first:
things like systen nomenclature, TM or other doc number, accessories, etc
in a data base, searchable on many terms.

There are wonderful existing resources, like you and Robert Downs, but
crossing manuals to hardware is difficult for mere mortals, like me.

This was made even more evident in looking for the ART-4 info recently.
Once Robert gave me the TM number, I had a hithertoo unobtanium manual in
seconds.

IMO, this is 'a good thing' and should be supported.

Best,

-John

===================

> Mike,
>
> Thank you very much for the exceptional response!
>
> I am currently creating a database that is highly cross referenced with
> the previously mentioned "Chesson" text data.  The goal is to allow open
> text searches with a *single* text box... Entry of something like
> CRV-12345 would return every system that contained that component. This is
> an ongoing project for my website, Radionerds.com
>
> Chris Story
> K6RWJ
> chris at codematic.com
>
> **Consider Encrypted Email with PGP**
>
> On Sep 25, 2013, at 3:05 PM, Mike Morrow <kk5f at earthlink.net> wrote:
>
>>> I want to be sure that im listing the nomenclatures correctly
>>>
>>> ALQ-144  Helicopter Anti-IR missile Set Sanders Asso. TM 11-5865-200-*
>>>   T-1360/     ALQ-144 IR Jammer
>>>   C-9576/     ALQ-144 CBx
>>>   C-10280/    ALQ-144 CBx
>>
>> A.  Any JAN-system component nomenclature will **normally** have the
>> component designation, slash, system designation on its name
>> plate.
>>
>> Example 1:  "AN/ARR-15A" system receiver control box "C-733A" will have
>> a complete designation of "C-733A/ARR-15A".
>>
>> There will always be the dashes as shown above, and there will *never*
>> be a dash between the "733" and the "A", nor between the "15" and the
>> "A".
>>
>> Sometimes a specific system will use components designated initially
>> for some other system.
>>
>> Example 2:  AN/ARC-5 receiver dynamotor DY-2A was actually initially
>> designated for the AN/ARR-2 homing receiver.  The dynamotor nomenclature
>> is DY-2A/ARR-2, even though it is being used in the AN/ARC-5 system.
>>
>> Sometimes a specific system will be made up of several different
>> components with their own individual "generic" nomenclatures.
>>
>> Example 3:  The AN/GRC-7 system consists of:
>> AM-65/GRC
>> C-375/VRC
>> C-435/GRC
>> MT-297/GR
>> PP-112/GR
>> PP-282/GRC
>> R-110/GRC
>> RT-68/GRC
>> RT-70/GRC
>>
>> Eliminate the R-110/GRC from the AN/GRC-7 and it becomes AN/GRC-8.
>>
>> Eliminate the RT-70/GRC from the AN/GRC-8 and it becomes AN/VRC-15.
>>
>> The correct listing of, say, the RT-70 in the AN/GRC-7 is RT-70/GRC.
>> Never RT-70/GRC-7.
>>
>> Example 4:  The AN/VRC-12 system consists of:
>> RT-246A/VRC
>> MT-1029/VRC
>>
>> Add a R-442A/VRC aux receiver an MT-1898/VRC and it becomes AN/VRC-43.
>> Add another R-442A and MT-1898 and it becomes AN/VRC-44.
>>
>> The correct listing of, say, the RT-246A in the AN/VRC-12 is
>> RT-246A/VRC.
>> Never RT-246A/VRC-12.
>>
>>
>> Example 5A:
>>
>> The AN/ARC-8 system consists of the AN/ART-13A (main component
>> T-47A/ART-13)
>> and the AN/ARR-11 (main component BC-348-*).
>>
>> The correct listing of, say, the receiver in the AN/ARC-8 is BC-348-*.
>> Never BC-348-*/ARC-8.  Similarly, the transmitter would never be listed
>> as
>> T-47A/ARC-8, just T-47A/ART-13.
>>
>> Example 5B:
>>
>> The AN/ARC-25 system consists of the AN/ART-13 (main component
>> T-47/ART-13)
>> and the AN/ARR-15A (main component R-105A/ARR-15).
>>
>> The correct listing of, say, the receiver in the AN/ARC-25 is
>> R-105A/ARR-15.
>> Never R-105A/ARC-25.  Similarly, the transmitter would never be listed
>> as
>> T-47/ARC-25, just T-47/ART-13.
>>
>> Example 6:
>>
>> Some JAN components are never given explicit component numbers.
>>
>> The AN/PRR-9 receiver has no explicit R-???/PRR-9 designation.  However,
>> its accessories did:  AS-1998A/PRR-9 antenna, H-264/PRR-9 headset.
>>
>> The pilot rescue transceivers AN/CRC-7, AN/PRC-17, AN/PRC-32, AN/PRC-63,
>> AN/PRC-90, AN/URC-64, AN/URC-68 have no explicit RT-??? designations.
>>
>> But the following similar sets do:
>> AN/URC-4 (RT-159*/URC-4)
>> AN/URC-10 (RT-278*/URC-10)
>> AN/URC-11 (RT-285*/URC-11)
>> AN/URC-14 (RT-350*/URC-14)
>>
>> B. Sometimes a JAN system nomenclature will be assigned to commercial
>> equipment that has never had explicit JAN component numbers assigned.
>>
>> Example:  Bendix commercial model RTA-1B HF transceiver was assigned
>> the JAN nomenclature of AN/ARC-9.  List unit as Bendix RTA-1B.
>>
>> Example:  Bendix commercial model MN-26LB RDF receiver was assigned
>> the JAN nomenclature of AN/ARN-11.  List unit as Bendix MN-26LB.
>>
>> Sometimes a JAN system nomenclature will be assigned to military
>> equipment
>> with an older service-specific designation, but has never had explicit
>> JAN component numbers assigned.
>>
>> Example:  Receiver BC-348-* was assigned JAN nomenclature AN/ARR-11.
>> List unit as BC-348-*.
>>
>> Example:  Bendix commercial model RTA-1B HF transceiver was assigned
>> the JAN nomenclature of AN/ARC-9.
>>
>> Thus, there are many small variations and inconsistencies in JAN
>> nomenclature use.
>>
>>> Should the components, for example "C-10280", be properly identified
>>> as:
>>>
>>> C-10280/ALQ
>>
>> Only if that is what is actually on the component's name plate.
>>
>>> or
>>> C-10280/ALQ-144
>>
>> Baring the previous case, this will typically be the correct form of
>> nomenclature.
>>
>>> or
>>> C-10280
>>
>> Never, except in informal writing where the full nomenclature is
>> understood by all readers.  However, it is true that a component
>> number in the JAN system remains uniquely assigned...it will
>> never be reused in an unrelated system later.  That C-10280 is
>> enough information to pin down one specific component because
>> there will not have been anything else in any other system that
>> has also been designated C-10280.
>>
>> You can find all the JAN rules in MIL-STD-196E, at URLs like
>>  http://ed-thelen.org/MIL-STD-196E.pdf
>>
>> There is a lot of historical information about military nomenclature
>> systems at:
>>  http://www.designation-systems.net/usmilav/electronics.html
>>
>> Mike / KK5F
>>
>> Mike / KK5F
>>
>
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