Product Details | ENGINE ACCESSORY GENERATOR

2920-00-439-2872 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: A505A, 2586556, 2920-00-439-2872, 00-439-2872, 2920004392872, 004392872

Engine Accessories | Engine Electrical System Components, Nonaircraft

Supply Group (FSG) NSN Assign. NIIN
29 28 NOV 1969 00-439-2872

Drawings & Photos | NSN 2920-00-439-2872


Cross Reference | NSN 2920-00-439-2872

Part Number Cage Code Manufacturer
2586556 80064 NAVAL SHIP SYSTEMS COMMAND
A505A 76761 C. E. NIEHOFF & CO.

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Technical Data | NSN 2920-00-439-2872

Characteristic Specifications
VOLTAGE IN VOLTS 28.0
MAXIMUM OUTPUT CURRENT RATING IN AMPS 230.0
MAXIMUM RATED ARMATURE SPEED IN RPM 3000
GROUNDING METHOD INTERNAL
GROUND POLARITY TYPE NEGATIVE
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 4.688 INCHES NOMINAL
DISTANCE BETWEEN SHAFT CENTER AND TOP MOUNTING HOLE CENTER 4.375 INCHES MINIMUM AND 4.875 INCHES MAXIMUM
DISTANCE BETWEEN INSIDE SURFACES OF HINGE BRACKET 6.125 INCHES NOMINAL
DISTANCE BETWEEN OUTSIDE SURFACES OF HINGE BRACKET 7.125 INCHES NOMINAL
BOTTOM MOUNTING HOLE DIAMETER 0.441 INCHES MINIMUM AND 0.461 INCHES MAXIMUM
ANGULAR DEVIATION OF FIRST HOLE FROM TOP CENTER IN DEG 170.0
ANGULAR DEVIATION OF SECOND HOLE FROM FIRST HOLE IN DEG 190.0
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 0.828 INCHES NOMINAL
SECOND STEP DIAMETER 0.780 INCHES NOMINAL
KEYWAY WIDTH 0.186 INCHES MINIMUM AND 0.188 INCHES MAXIMUM
UNTHREADED PORTION LENGTH 1.297 INCHES NOMINAL
DISTANCE FROM END TO KEYWAY CENTER 1.062 INCHES NOMINAL
THREAD SERIES UNF
THREAD DIAMETER 0.750 INCHES NOMINAL
THREAD QUANTITY PER INCH 16
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
SUBMERSIBILITY SUBMERSIBLE
MAXIMUM OPERATING ALTITUDE RATING 10000.0 FEET
ENVIRONMENTAL PROTECTION CORROSION RESISTANT AND FUNGUS RESISTANT
FURNISHED ITEMS RADIO INTERFERENCE SHIELDING
MANUFACTURERS CODE 80064
DESIGN CONTROL REFERENCE 2586556

Restrictions/Controls & Freight Information | NSN 2920-00-439-2872

Category Code Description
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:DMunitions List Item or Commerce Control List Item. Demilitarization required. Total destruction of the item and components so as to preclude restoration or repair to a usable condition by melting, cutting, tearing, scratching, crushing, breaking, punching, neutralizing, etc. (As an alternate, burial or deep water dumping may be used when coordinated with the DoD Demilitarization Program Office.)
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.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
No Freight Information