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Engine Accessory Generator

NSN: 2920-00-391-2989 | Model: 1105970

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.

NSN Properties and Flags
NATO Stock Number
2920-00-391-2989
DEMIL
NO
Thread Direction
Right-hand
Thread Length
0.720 inches
Furnished Items
Radio interference shielding and woodruff key
Second Step Diameter
Between 0.668 inches and 0.669 inches
Keyway Width
0.125 inches
Unthreaded Portion Length
Between 1.280 inches and 1.340 inches
Mounting Hole Thread Direction
Right-hand
Mounting Style
Bracket mtd w/three mtg holes, top hole threaded
Environmental Protection
Dustproof and corrosion resistant and fungus resistant
Keyway Length
0.625 inches
Submersibility
Nonsubmersible
Shaft Rotation Direction
Clockwise
Distance From End To Keyway Center
Between 1.330 inches and 1.390 inches
Thread Diameter
0.500 inches
Ground Polarity Type
Negative
Armature Minimum Speed In Rpm At Full Current Output
1950
Maximum Output Current Rating In Amps
18.0
Grounding Method
Internal
Shaft Drive End Style
Straight shaft end, threaded, w/keyway
Distance Between Shaft Center And Bottom Mounting Hole Center
3.875 inches
Distance Between Shaft Center And Top Mounting Hole Center
3.500 inches
Angular Deviation Of First Hole From Top Center In Deg
180.0
Angular Deviation Of Second Hole From First Hole In Deg
159.0
Distance Between Inside Surfaces Of Hinge Bracket
Between 7.243 inches and 7.257 inches
Distance Between Outside Surfaces Of Hinge Bracket
Between 8.103 inches and 8.197 inches
Bottom Mounting Hole Diameter
Between 0.447 inches and 0.459 inches
Maximum Rated Armature Speed In Rpm
4000
Thread Series
Unf
Thread Class
2a
Mounting Hole Thread Series Designator
Unc
Mounting Hole Thread Diameter
0.375 inches
Mounting Hole Thready Qty Per Inch (tpi)
16
Mounting Hole Thread Class
2b
Thready Qty Per Inch (tpi)
20
Voltage In Volts
28.0
Test Data Document
81349-mil-g-12604 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Nondefinitive Specification/std Data
B class and 2 grade and b group

Pricing and Availability

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NSN 2920-00-391-2989 Datasheet

Supply Class (FSC):
Nonaircraft Engine Electrical System Components
Cross Reference:
  • 1105970
  • 1105993
  • 202173A
  • 14606
  • 1105970
  • 1105993
  • MTRC0U2400
  • 53601DS
  • MS13823-1
  • 1105993
  • 1105970
  • 53601DS
  • 32862
  • 559361
  • F218M500
  • 250202DS
  • 250651C
  • 53601DS
  • 1M7351A
Cage Codes:
  • Remy, Inc. (CAGE 1LW55)
  • General Motors Corp (CAGE 61928)
  • Yale Group, Inc. Hyster (CAGE 30076)
  • John Reiner & Co. Inc. (CAGE 50309)
  • General Motors Corp (CAGE 24617)
  • Schramm, Inc. (CAGE 53496)
  • O K Machinery Div Of Motter John C (CAGE 44369)
  • Military Standards (CAGE 96906)
  • General Motors Corp (CAGE 16764)
  • Komatsu American Intl Co (CAGE 29510)
  • Crane Pumps & Systems, Inc. (CAGE 96046)
  • Badger Fire Protection Inc (CAGE 07464)
  • Teledyne Continental Motors (CAGE 14351)
  • Hercules Engine Co Inc (CAGE 28265)
  • White Farm Equipment Co (CAGE 93343)
Replacements:
  • 2920-00-391-2989 replaces 2920-00-302-6512
  • 2920-00-391-2989 replaces 2920-00-603-4440
  • 2920-00-391-2989 replaces 2920-00-603-4788
  • 2920-00-391-2989 replaces 2920-00-606-7256
  • 2920-00-391-2989 replaces 2920-00-759-7380
  • 2920-00-391-2989 replaces 2920-00-787-9939
  • 2920-00-391-2989 replaces 2920-00-930-5816
  • 2920-00-391-2989 replaces 2920-00-983-4323
  • 2920-00-391-2989 replaces 2920-00-988-9552
Schedule B & Trade:
  • Schedule B: 8511500000 (NAICS 336320)

    Generators for internal combustion engines, nesoi

  • SITC: 77831

    Electrical ignition or starting equipment used for spark-ignition or compression-ignition internal combustion engines; generators and cut-outs, etc.

  • End Use: 30200

    Engines and engine parts (carburetors, pistons, rings, and valves)

Identification:
HMIC

N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

PMIC

U - Precious metal content is unknown

CRITL

- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:
  • NMFC:

    062120 - Generators/motors/parts noi

  • WCC:

    590 - Generators and parts, (machinery and parts),(less than 35 feet)

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • ACC:

    V - Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing

  • LTL:

    W - Rating variable

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
    Sms
  • AAC
    J
  • Quantity per pack
    1
  • Unit of Measure
    Ea
  • Shelf Life
    N/A
  • Classification Control
    U
  • MGMT_CTL
    15b2---
  • Repariability
    If condemned or uneconomically repairable , then dispose at direct support (ds) level.

Questions & Answers:
What are the historical prices recorded for this stock number?
Historical data shows pricing from $1,999.04 to $3,331.73..
Does NSN 2920-00-391-2989 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Army, Department Of The Air Force, U.s. Marine Corps, Department Of The Navy, Austria, Israel, New Zealand, Republic Of Korea, Greece, and Turkey
What is the NIIN of NSN 2920-00-391-2989?
003912989 or 00-391-2989
Does NSN 2920-00-391-2989 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 2920-00-391-2989?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 01, 1963