Part Details | ENGINE ACCESSORY GENERATOR
2920-00-640-7872 A generator primarily designed to be mounted on an internal combustion engine, and to be driven by the engine to keep the battery in a charged condition. May also supply current for the engine ignition system and/or electrical equipment which is connected to the battery circuit. Includes alternating current generators designed for use with a rectifier. Excludes the major generator of "GENERATING SETS". For generators specifically designed for aircraft use and not mounted on the engine, see GENERATOR, DIRECT CURRENT.
Alternate Parts: 1401004, 2920-00-640-7872, 00-640-7872, 2920006407872, 006407872
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 29 | JAN 01, 1963 | 00-640-7872 | 17311 ( GENERATOR, ENGINE ACCESSORY ) |
REFERENCE DRAWINGS & PICTURES
ROUND FLANGE WITH HOLES EQUALLY SPACED
STRAIGHT SHAFT END, THREADED, W/KEYWAY
Cross Reference | NSN 2920-00-640-7872
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 1401004 | 12204 | DAIMLER CHRYSLER |
Technical Data | NSN 2920-00-640-7872
| Characteristic | Specifications |
|---|---|
| VOLTAGE IN VOLTS | 6.0 |
| MAXIMUM OUTPUT CURRENT RATING IN AMPS | 45.0 |
| MAXIMUM RATED ARMATURE SPEED IN RPM | 8000 |
| ARMATURE MINIMUM SPEED IN RPM AT FULL CURRENT OUTPUT | 1800 |
| MINIMUM CURRENT CUT-IN SPEED IN RPM | 1000 |
| GROUNDING METHOD | INTERNAL |
| SHAFT ROTATION DIRECTION | CLOCKWISE |
| MOUNTING STYLE | 5 ROUND FLANGE WITH HOLES EQUALLY SPACED |
| DISTANCE BETWEEN SHAFT CENTER AND BOTTOM MOUNTING HOLE CENTER | 3.375 INCHES NOMINAL |
| DISTANCE BETWEEN SHAFT CENTER AND TOP MOUNTING HOLE CENTER | 3.188 INCHES NOMINAL |
| DISTANCE BETWEEN INSIDE SURFACES OF HINGE BRACKET | 6.680 INCHES MINIMUM AND 6.694 INCHES MAXIMUM |
| DISTANCE BETWEEN OUTSIDE SURFACES OF HINGE BRACKET | 7.398 INCHES MINIMUM AND 7.412 INCHES MAXIMUM |
| BOTTOM MOUNTING HOLE DIAMETER | 0.328 INCHES NOMINAL |
| ANGULAR DEVIATION OF FIRST HOLE FROM TOP CENTER IN DEG | 17.0 |
| ANGULAR DEVIATION OF SECOND HOLE FROM FIRST HOLE IN DEG | 163.0 |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNC |
| MOUNTING HOLE THREAD DIAMETER | 0.312 INCHES NOMINAL |
| MOUNTING HOLE THREAD QUANTITY PER INCH | 18 |
| MOUNTING HOLE THREAD CLASS | 2B |
| MOUNTING HOLE THREAD DIRECTION | RIGHT-HAND |
| SHAFT DRIVE END STYLE | STRAIGHT SHAFT END, THREADED, W/KEYWAY |
| THREAD LENGTH | 0.438 INCHES NOMINAL |
| SECOND STEP DIAMETER | 0.669 INCHES NOMINAL |
| KEYWAY WIDTH | 0.125 INCHES NOMINAL |
| UNTHREADED PORTION LENGTH | 0.781 INCHES NOMINAL |
| KEYWAY LENGTH | 0.625 INCHES NOMINAL |
| DISTANCE FROM END TO KEYWAY CENTER | 0.781 INCHES NOMINAL |
| THREAD SERIES | UNS |
| THREAD DIAMETER | 0.669 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| SUBMERSIBILITY | NONSUBMERSIBLE |
| ENVIRONMENTAL PROTECTION | FUNGUS RESISTANT |
| FURNISHED ITEMS | COOLING FAN AND DRIVE PULLEY AND RADIO INTERFERENCE SHIELDING |