Product Details | ENGINE ACCESSORY GENERATOR

2920-00-640-7889 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: E59426M, 2920-00-640-7889, 00-640-7889, 2920006407889, 006407889

Engine Accessories | Engine Electrical System Components, Nonaircraft

Supply Group (FSG) NSN Assign. NIIN
29 01 JAN 1963 00-640-7889

Drawings & Photos | NSN 2920-00-640-7889


Cross Reference | NSN 2920-00-640-7889

Part Number Cage Code Manufacturer
E59426M 12204 DAIMLER CHRYSLER

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Technical Data | NSN 2920-00-640-7889

Characteristic Specifications
VOLTAGE IN VOLTS 12.0
MAXIMUM OUTPUT CURRENT RATING IN AMPS 12.0
MAXIMUM RATED ARMATURE SPEED IN RPM 1500
ARMATURE MINIMUM SPEED IN RPM AT FULL CURRENT OUTPUT ANY ACCEPTABLE
MINIMUM CURRENT CUT-IN SPEED IN RPM ANY ACCEPTABLE
GROUNDING METHOD EXTERNAL
SHAFT ROTATION DIRECTION CLOCKWISE
MOUNTING STYLE 8 FLANGE MTD W/TWO MTG SLOTS AND ONE MTG HOLE
PILOT DIAMETER 3.624 INCHES NOMINAL
SLOT WIDTH 0.438 INCHES NOMINAL
SLOT LENGTH 1.750 INCHES NOMINAL
PILOT HEIGHT 0.188 INCHES NOMINAL
CENTER TO CENTER DISTANCE BETWEEN MOUNTING SLOTS 3.250 INCHES NOMINAL
DISTANCE BETWEEN SHAFT CENTER AND BOTTOM MOUNTING HOLE CENTER 2.812 INCHES NOMINAL
BOTTOM MOUNTING HOLE DIAMETER 0.406 INCHES NOMINAL
CENTER TO CENTER DISTANCE BETWEEN TOP MOUNTING SLOT AND BOTTOM MOUNTING HOLE 5.375 INCHES NOMINAL
SHAFT DRIVE END STYLE 5 STRAIGHT SHAFT END, THREADED W/DOUBLE KEYWAY
THREAD LENGTH 0.438 INCHES NOMINAL
FIRST STEP DIAMETER 0.499 INCHES NOMINAL
FIRST STEP LENGTH 0.562 INCHES NOMINAL
THIRD STEP DIAMETER 0.750 INCHES NOMINAL
THIRD STEP LENGTH 0.750 INCHES NOMINAL
DISTANCE FROM END TO FIRST KEYWAY CENTER 0.312 INCHES NOMINAL
FIRST KEYWAY WIDTH 0.125 INCHES NOMINAL
FIRST KEYWAY LENGTH 0.500 INCHES NOMINAL
DISTANCE FROM END TO SECOND KEYWAY CENTER 1.562 INCHES NOMINAL
SECOND KEYWAY LENGTH 0.625 INCHES NOMINAL
SECOND KEYWAY WIDTH 0.156 INCHES NOMINAL
THREAD SERIES UNF
THREAD DIAMETER 0.625 INCHES NOMINAL
THREAD QUANTITY PER INCH 18
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
SUBMERSIBILITY NONSUBMERSIBLE
MAXIMUM OPERATING ALTITUDE RATING NOT RATED
III COTTER PIN HOLE INCLUDED
MANUFACTURERS CODE 12204
DESIGN CONTROL REFERENCE E59426M

Restrictions/Controls & Freight Information | NSN 2920-00-640-7889

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem does not contain precious metal
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 2920-00-640-7889

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesXSEMIACTIVE ITEM-NO REPLACEMENT (NON-STOCKED ITEMS) A potentially inactive NSN which must be retained in the supply system as an item of supply because (1) stocks of the item are on hand or in use below the wholesale level and (2) the NSN is cited in equipment authorization documents TO & E, TA, TM, etc., or in-use assets are being reported. 1. Items are authorized for central procurement but not authorized for stockage at wholesale level. 2. Requisitions for in-use replacement will be authorized in accordance with individual Military Service directives. 3. Requisitions may be submitted as requirements generate. Repetitive demands may dictate an AAC change to permit wholesale stockage.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each