Part Details | ENGINE ACCESSORY GENERATOR
2920-00-840-8656 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: GDY4115N, GDY4115N, 2920-00-840-8656, 00-840-8656, 2920008408656, 008408656
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 29 | DEC 21, 1966 | 00-840-8656 | 17311 ( GENERATOR, ENGINE ACCESSORY ) |
REFERENCE DRAWINGS & PICTURES
ROUND FLANGE WITH HOLES EQUALLY SPACED
STRAIGHT SHAFT END, THREADED, W/KEYWAY
Cross Reference | NSN 2920-00-840-8656
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| GDY4115N | 68505 | PRESTOLITE ELECTRIC INC |
| GDY4115N | 24975 | PRESTOLITE ELECTRIC INCORPORATEDDBA PRESTOLITE ELECTRIC |
Technical Data | NSN 2920-00-840-8656
| Characteristic | Specifications |
|---|---|
| VOLTAGE IN VOLTS | 12.0 |
| MAXIMUM OUTPUT CURRENT RATING IN AMPS | 7.0 |
| ARMATURE MINIMUM SPEED IN RPM AT FULL CURRENT OUTPUT | 2800 |
| GROUNDING METHOD | EXTERNAL |
| GROUND POLARITY TYPE | NEGATIVE |
| SHAFT ROTATION DIRECTION | CLOCKWISE |
| MOUNTING STYLE | 8 ROUND FLANGE WITH HOLES EQUALLY SPACED |
| PILOT DIAMETER | 3.248 INCHES MINIMUM AND 3.250 INCHES MAXIMUM |
| PILOT HEIGHT | 0.188 INCHES NOMINAL |
| DISTANCE BETWEEN SHAFT CENTER AND BOTTOM MOUNTING HOLE CENTER | 2.091 INCHES MINIMUM AND 2.097 INCHES MAXIMUM |
| DISTANCE BETWEEN SHAFT CENTER AND TOP MOUNTING HOLE CENTER | 2.091 INCHES MINIMUM AND 2.097 INCHES MAXIMUM |
| ANGULAR DEVIATION OF FIRST HOLE FROM TOP CENTER IN DEG | 5.0 |
| ANGULAR DEVIATION OF SECOND HOLE FROM FIRST HOLE IN DEG | 180.0 |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNC |
| MOUNTING HOLE THREAD DIAMETER | 0.375 INCHES NOMINAL |
| MOUNTING HOLE THREAD QUANTITY PER INCH | 16 |
| MOUNTING HOLE THREAD CLASS | 2B |
| MOUNTING HOLE THREAD DIRECTION | RIGHT-HAND |
| SHAFT DRIVE END STYLE | STRAIGHT SHAFT END, THREADED, W/KEYWAY |
| THREAD LENGTH | 0.312 INCHES NOMINAL |
| SECOND STEP DIAMETER | 0.7495 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| KEYWAY WIDTH | 0.156 INCHES NOMINAL |
| UNTHREADED PORTION LENGTH | 1.062 INCHES NOMINAL |
| KEYWAY LENGTH | 0.750 INCHES NOMINAL |
| DISTANCE FROM END TO KEYWAY CENTER | 0.750 INCHES NOMINAL |
| THREAD SERIES | UNF |
| THREAD DIAMETER | 0.500 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| SUBMERSIBILITY | NONSUBMERSIBLE |
| FURNISHED ITEMS | CUTOUT RELAY AND WOODRUFF KEY |
| FSC APPLICATION DATA | ENGINE ELECTRICAL SYSTEM,NONAIRCRAFT |