NSN 2920-00-391-2989 MS138231, MS13823-1, MTRC0U2400

Product Details | ENGINE ACCESSORY GENERATOR

2920-00-391-2989 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: MS138231, MS13823-1, MTRC0U2400, F218M500, 32862, 53601DS, 559361, 1105970, 1105993, 14606, 1M7351A, 202173A, 250202DS, 250651C, 2920-00-391-2989, 00-391-2989, 2920003912989, 003912989

Engine Accessories | Engine Electrical System Components, Nonaircraft

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
29	01 JAN 1963	00-391-2989	17311 ( GENERATOR, ENGINE ACCESSORY )

Drawings & Photos | NSN 2920-00-391-2989

Part Number	Request Date	QTY	Origin	SBA
MS138231	2010-07-189	1	US

Cross Reference | NSN 2920-00-391-2989

Part Number	Cage Code	Manufacturer
1105970	16764	GENERAL MOTORS CORP DELCO REMY DIV
1105970	1LW55	REMY, INC.
1105970	24617	GENERAL MOTORS CORP
1105993	16764	GENERAL MOTORS CORP DELCO REMY DIV
1105993	24617	GENERAL MOTORS CORP
1105993	61928	GENERAL MOTORS CORP AC-DELCO DIV
14606	50309	JOHN REINER & CO. INC.
1M7351A	93343	WHITE FARM EQUIPMENT CO SUB OF TIC INVESTMENT CORP
202173A	30076	NACCO MATERIALS HANDLING GROUP INC DBA HYSTER
250202DS	28265	HERCULES ENGINE CO INC
250651C	28265	HERCULES ENGINE CO INC
32862	96046	CRANE PUMPS & SYSTEMS, INC.
53601DS	28265	HERCULES ENGINE CO INC
53601DS	29510	KOMATSU AMERICAN INTL CO
53601DS	44369	O K MACHINERY DIV OF MOTTER JOHN C PRINTING PRESS CO
559361	07464	BADGER FIRE PROTECTION INC
F218M500	14351	TELEDYNE CONTINENTAL MOTORS INDUSTRIAL PRODUCTS DIV
MS13823-1	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS
MTRC0U2400	53496	SCHRAMM INC.

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Related Products | NSN 2920-00-391-2989

2920-00-391-2991, 2920-00-391-2994, 2920-00-391-2995, 2920-00-391-2996, 2920-00-391-2997

Technical Data | NSN 2920-00-391-2989

Characteristic	Specifications
VOLTAGE IN VOLTS	28.0
MAXIMUM OUTPUT CURRENT RATING IN AMPS	18.0
MAXIMUM RATED ARMATURE SPEED IN RPM	4000
ARMATURE MINIMUM SPEED IN RPM AT FULL CURRENT OUTPUT	1950
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	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	8.103 INCHES MINIMUM AND 8.197 INCHES MAXIMUM
BOTTOM MOUNTING HOLE DIAMETER	0.447 INCHES MINIMUM AND 0.459 INCHES MAXIMUM
ANGULAR DEVIATION OF FIRST HOLE FROM TOP CENTER IN DEG	180.0
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	0.720 INCHES NOMINAL
SECOND STEP DIAMETER	0.668 INCHES MINIMUM AND 0.669 INCHES MAXIMUM
KEYWAY WIDTH	0.125 INCHES NOMINAL
UNTHREADED PORTION LENGTH	1.280 INCHES MINIMUM AND 1.340 INCHES MAXIMUM
KEYWAY LENGTH	0.625 INCHES NOMINAL
DISTANCE FROM END TO KEYWAY CENTER	1.330 INCHES MINIMUM AND 1.390 INCHES MAXIMUM
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	DUSTPROOF AND CORROSION RESISTANT AND FUNGUS RESISTANT
FURNISHED ITEMS	RADIO INTERFERENCE SHIELDING AND WOODRUFF KEY
TEST DATA DOCUMENT	81349-MIL-G-12604 SPECIFICATION
NONDEFINITIVE SPEC/STD DATA	B CLASS AND 2 GRADE AND B GROUP

Restrictions/Controls & Freight Information | NSN 2920-00-391-2989

Restrictions
Freight

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 2920-00-391-2989

Category	Code	Description
Materiel Category and Inventory Manager	J	Ground Forces Support Materiel (DLA/GSA Items)
Appropriation and Budget Activity	2	Stock Fund Secondary Items
Management Inventory Segment	2	NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable.
Specific Group/Generic Code	0	Medical Materiel
Weapons Systems/End Item or Homogeneous Group	00	DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item
Accounting Requirements Code	X	Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items.
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DA	Department of the Army
Service Organization	A	U.S. Army
Reparability	Z	This is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item.
Acquisition Advice Codes	J	NOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	1 EA : Each

Category	Code	Description
Budget Code	9	General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors.
Fund Code	SF	Stock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Price Validation	V	The current standard price has been validated. The item has been analyzed in conjunction with the Zero Overpricing Program and is in the accepted price range. The item was procured under open competition and under the competitive arena the price is considered fair and reasonable. ZOP or Standard price challenges are permissible but must be supported by adequate justification.
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DF	Department of the Air Force
Service Organization	F	U.S. Air Force
Reparability	P	Stock Fund (except Munitions)
Acquisition Advice Codes	J	NOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	1 EA : Each

Category	Code	Description
Stores Account Code	1	Marine Corps Stock Fund Account Item.
Combat Essentiality Code	5	Critical Repair Part to a Combat Essential End Item. Those parts or components whose failure in a combat essential end item will render the end item inoperative or reduce its effectiveness below the minimum acceptable level of efficiency.
Materiel Management Code	B	All CommoditiesDefense Logistics Agency, (DLA,)
Echelon Management Code	2	ICP/DSSC Marine Corps-managed Recoverability Code D items and Defense Logistics Agency (DLA)/TACOM/GSA) items which the integrated manager has not decontrolled.
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DM	U.S. Marine Corps
Service Organization	M	U.S. Marine Corps
Reparability	Z	Nonreparable item. When unserviceable, condemn and dispose at the level indicated by the first digit of the maintenance code.
Acquisition Advice Codes	J	NOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	1 EA : Each

Category	Code	Description
Cognizance Codes	3B	Navy-owned stocks of field level repairable DLA material Naval Inventory Control Point, Mechanicsburg
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DN	Department of the Navy
Service Organization	N	U.S. Navy
Reparability	D	Field Level Reparables
Acquisition Advice Codes	J	NOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	1 EA : Each