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AN (Army / Navy) Component Designators & Designations

This is a very comprehensive list of U.S. (Army / Navy) AN Components Designators & Designations

These AN (Army/Navy) component designators describe nomenclature that sometimes replaces the AN part of the designator.

For example, ID-42/APQ-13 describes an airborne, radar, special purpose (APQ-13) with a model 42 indicator (ID).

A - Support, antenna HD - Air conditioning apparatus RR - Reflector
AM - Amplifier ID - Indicating device RT - Receiver and transmitter
AS- Antenna assembly IL - Insulator S - Shelter
AT- Antenna IM - Intensity measuring device SA - Switching device
BA - Battery, primary type IP - Indicator, cathode-ray tube SB - Switchboard
BB - Battery, secondary type J - Junction device SG - Generator, signal
BZ - Signal device, audible KY - Keying device SM - Simulator
C - Control article LC - Tool, line construction SN - Synchronizer
CA - Commutator assembly, sonar LS - Loudspeaker ST - Strap
CB - Capacitor bank M - Microphone T - Radio and radar transmitter
CG - Cable & transmission line, r.f. MD - Modulator TA - Telephone apparatus
CK - Crystal kit ME - Meter, portable TD - Timing device
CM - Comparator MK - Maintenance kit or equipment TF - Transformer
CN - Compensator ML - Meteorological device TG - Positioning device
CP - Computer MT - Mounting TH - Telegraph apparatus
CR - Crystal MX - Miscellaneous TK - Tool kit or equipment
CU - Coupling device O - Oscillator TL - Tool
CV - Converter OA - Operating assembly TN - Tuning unit
CW - Cover OS - Oscilloscope, test TS - Test equipment
CX - Cord PD - Prime driver TT - Teletypewriter and facsimile

       apparatus

CY - Case PF - Fitting, pole TV - Tester, tube
DA - Antenna, dummy PG - Pigeon article U - Connector, audio and power
DT - Detecting head PH - Photographic article UG - Connector, r.f.
DY - Dynamotor PP - Power supply V - Vehicle
E - Hoist assembly PT - Plotting equipment VS - Signaling equipment, visual
F - Filter PU - Power equipment WD - Cable, two-conductor
FN - Furniture R - Radio and radar receiver WF - Cable, two conductor
FR - Frequency measuring device RD - Recorder and reproducer WM - Cable, multiple-conductor
G - Generator RE - Relay assembly WS - Cable, single conductor
GO - Goniometer RF - Radio frequency component WT -  Cable, three-conductor
GP - Ground rod RG - Cable and transmission line,

        bulk r.f.

ZM - Impedance measuring device
H - Head, hand, and chest set RL - Reel assembly  
HC - Crystal holder RP - Rope and twine  
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