NSN 2920-00-643-4850 1105980, 00-643-4850, 006434850
Product Details | ENGINE ACCESSORY GENERATOR
2920-00-643-4850 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.20229200048Engine Electrical System Components, Nonaircraft29250058Engine Electrical System Components, Aircraft Prime Moving
Part Alternates: 1105980, 2920-00-643-4850, 00-643-4850, 2920006434850, 006434850
Engine Accessories | Engine Electrical System Components, Nonaircraft
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 29 | 01 JAN 1963 | 00-643-4850 | 17311 ( GENERATOR, ENGINE ACCESSORY ) |
Drawings & Photos | NSN 2920-00-643-4850
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Technical Data | NSN 2920-00-643-4850
| Characteristic | Specifications |
|---|---|
| VOLTAGE IN VOLTS | 24.0 |
| MAXIMUM OUTPUT CURRENT RATING IN AMPS | 18.0 |
| ARMATURE MINIMUM SPEED IN RPM AT FULL CURRENT OUTPUT | 1900 |
| GROUNDING METHOD | EXTERNAL |
| GROUND POLARITY TYPE | NEGATIVE OR POSITIVE |
| SHAFT ROTATION DIRECTION | CLOCKWISE |
| MOUNTING STYLE | 15 BRACKET MTD W/THREE MTG HOLES, TOP HOLE THREADED |
| DISTANCE BETWEEN SHAFT CENTER AND BOTTOM MOUNTING HOLE CENTER | 3.875 INCHES NOMINAL |
| DISTANCE BETWEEN SHAFT CENTER AND TOP MOUNTING HOLE CENTER | 3.500 INCHES NOMINAL |
| DISTANCE BETWEEN INSIDE SURFACES OF HINGE BRACKET | 7.243 INCHES MINIMUM AND 7.257 INCHES MAXIMUM |
| DISTANCE BETWEEN OUTSIDE SURFACES OF HINGE BRACKET | 8.123 INCHES MINIMUM AND 8.137 INCHES MAXIMUM |
| BOTTOM MOUNTING HOLE DIAMETER | 0.453 INCHES NOMINAL |
| ANGULAR DEVIATION OF FIRST HOLE FROM TOP CENTER IN DEG | 193.0 |
| ANGULAR DEVIATION OF SECOND HOLE FROM FIRST HOLE IN DEG | 159.0 |
| 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 | 1 STRAIGHT SHAFT END, THREADED, W/KEYWAY |
| THREAD LENGTH | 0.460 INCHES MINIMUM AND 0.550 INCHES MAXIMUM |
| SECOND STEP DIAMETER | 0.668 INCHES MINIMUM AND 0.669 INCHES MAXIMUM |
| KEYWAY WIDTH | 0.125 INCHES NOMINAL |
| UNTHREADED PORTION LENGTH | 0.750 INCHES MINIMUM AND 0.840 INCHES MAXIMUM |
| KEYWAY LENGTH | 0.625 INCHES NOMINAL |
| DISTANCE FROM END TO KEYWAY CENTER | 0.900 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 | CORROSION RESISTANT AND FUNGUS RESISTANT |
| FURNISHED ITEMS | TERMINAL SHIELD AND WOODRUFF KEY |
| III FSC APPLICATION DATA | ENGINEELECTRICAL SYSTEM,NONAIRCRAFT |
Restrictions/Controls & Freight Information | NSN 2920-00-643-4850
| Category | Code | Description |
|---|---|---|
| Shelf-Life Code: | 0 | Nondeteriorative |
| Hazardous Material Indicator Code | N | There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials |
| Demilitarization Code: | A | Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required. |
| Controlled Inventory Item Code: | U | UNCLASSIFIED |
| Precious Metals Indicator Code: | U | Precious metal type is unknown |
| Criticality Code: | X | The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. |
| Category | Code | Description |
|---|---|---|
| NMF Description | 062120 | GENERATORS/MOTORS/PARTS NOI |
| Less than car load rating | ||
| Less than truck load rating | W | Rating Variable |
| Water commodity Code | 590 | unknown |
| Originating Activity Code | XX | |
| Air Dimension Code | A | Shipment is not a consolidation and does not exceed 72 inches in any dimension. |
| Air Commodity | V | Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above. |
| Air Special Handling | Z | No special handling required. |
| Special Handling Code | 9 | unknonwn |
| HAZMAT | ||
| Type of Cargo | Z | No special type of cargo code applicable |
Management | NSN 2920-00-643-4850
Navy| Category | Code | Description |
|---|---|---|
| Cognizance Codes | 9B | Navy-owned stocks of DLA material Naval Inventory Control Point, Mechanicsburg |
| Issue Repair, or Requisition | R9 | Integrated Manager reparable item. Includes Defense Logistics Agency-managed items which are reportable in non-RFI condition to appropriate Defense Supply Center per NAVSUP instructions for return of excess material to DLA. |
| Source of Supply | SMS | Defense Logistics Agency Enterprise Business Systems |
| Agency | DN | Department of the Navy |
| Service Organization | N | U.S. Navy |
| Acquisition Advice Codes | V | TERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
Z EA : Each |