Product Details | ENGINE ACCESSORY GENERATOR

2920-00-640-7485 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: DE56972, 1101770, 2920-00-640-7485, 00-640-7485, 2920006407485, 006407485

Engine Accessories | Engine Electrical System Components, Nonaircraft

Supply Group (FSG) NSN Assign. NIIN
29 01 JAN 1963 00-640-7485

Drawings & Photos | NSN 2920-00-640-7485


Cross Reference | NSN 2920-00-640-7485

Part Number Cage Code Manufacturer
1101770 16764 GENERAL MOTORS CORP DELCO REMY DIV
1101770 1LW55 REMY, INC.
1101770 24617 GENERAL MOTORS CORP
DE56972 6N299 AGCO CORP PARTS OPN

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Technical Data | NSN 2920-00-640-7485

Characteristic Specifications
VOLTAGE IN VOLTS 12.0
MAXIMUM OUTPUT CURRENT RATING IN AMPS 11.0
MAXIMUM RATED ARMATURE SPEED IN RPM NOT RATED
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 15 BRACKET MTD W/THREE MTG HOLES, TOP HOLE THREADED
DISTANCE BETWEEN SHAFT CENTER AND BOTTOM MOUNTING HOLE CENTER 3.062 INCHES NOMINAL
DISTANCE BETWEEN SHAFT CENTER AND TOP MOUNTING HOLE CENTER 3.062 INCHES NOMINAL
DISTANCE BETWEEN INSIDE SURFACES OF HINGE BRACKET 6.118 INCHES MINIMUM AND 6.136 INCHES MAXIMUM
DISTANCE BETWEEN OUTSIDE SURFACES OF HINGE BRACKET 6.830 INCHES MINIMUM AND 6.832 INCHES MAXIMUM
BOTTOM MOUNTING HOLE DIAMETER 0.316 INCHES MINIMUM AND 0.324 INCHES MAXIMUM
ANGULAR DEVIATION OF FIRST HOLE FROM TOP CENTER IN DEG 206.0
ANGULAR DEVIATION OF SECOND HOLE FROM FIRST HOLE IN DEG 154.0
MOUNTING HOLE THREAD SERIES DESIGNATOR UNC
MOUNTING HOLE THREAD DIAMETER 0.312 INCHES NOMINAL
MOUNTING HOLE THREAD QUANTITY PER INCH 20
MOUNTING HOLE THREAD CLASS 2B
MOUNTING HOLE THREAD DIRECTION RIGHT-HAND
SHAFT DRIVE END STYLE 1 STRAIGHT SHAFT END, THREADED, W/KEYWAY
THREAD LENGTH 0.719 INCHES NOMINAL
SECOND STEP DIAMETER 0.668 INCHES MINIMUM AND 0.669 INCHES MAXIMUM
KEYWAY WIDTH 0.125 INCHES NOMINAL
UNTHREADED PORTION LENGTH 1.250 INCHES NOMINAL
KEYWAY LENGTH 0.625 INCHES NOMINAL
DISTANCE FROM END TO KEYWAY CENTER 1.344 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
MAXIMUM OPERATING ALTITUDE RATING NOT RATED
ENVIRONMENTAL PROTECTION CORROSION RESISTANT
FURNISHED ITEMS CUTOUT RELAY
III COTTER PIN HOLE INCLUDED
MANUFACTURERS CODE 16764
DESIGN CONTROL REFERENCE 1101770

Restrictions/Controls & Freight Information | NSN 2920-00-640-7485

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:UPrecious 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
No Freight Information

Management | NSN 2920-00-640-7485

Category Code Description
Cognizance Codes9CNavy-owned stocks of defense construction material
Naval Inventory Control Point, Mechanicsburg
Source of SupplyS9CDefense Supply Center Columbus
Columbus, OH 43215
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesYTERMINAL ITEM #(NON-STOCKED ITEMS) Future procurement is not authorized. No wholesale stock is available for issue. 1. Requisitions will not be processed to the wholesale manager. 2. Internal Service/agency requisitioning may be continued in accordance with the Service/agency requisitioning policies.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative