Model: 640955

Engine Accessory Generator

Properties:

Thread Direction
Right-hand
Thread Length
Between 0.453 inches and 0.547 inches
Furnished Items
Woodruff key
Second Step Diameter
Between 0.668 inches and 0.669 inches
Keyway Width
0.125 inches
Unthreaded Portion Length
Between 0.750 inches and 0.844 inches
Mounting Hole Thread Direction
Right-hand
Mounting Style
Bracket mtd w/three mtg holes, top hole threaded
Environmental Protection
Corrosion resistant and fungus resistant
Keyway Length
0.625 inches
Submersibility
Nonsubmersible
Shaft Rotation Direction
Clockwise
Distance From End To Keyway Center
0.891 inches
Thread Diameter
0.669 inches
Ground Polarity Type
Negative or positive
Armature Minimum Speed In Rpm At Full Current Output
2150
Maximum Output Current Rating In Amps
40.0
Grounding Method
External
Shaft Drive End Style
Straight shaft end, threaded, w/keyway
Distance Between Shaft Center And Bottom Mounting Hole Center
3.062 inches
Distance Between Shaft Center And Top Mounting Hole Center
3.062 inches
Angular Deviation Of First Hole From Top Center In Deg
193.0
Angular Deviation Of Second Hole From First Hole In Deg
164.0
Distance Between Inside Surfaces Of Hinge Bracket
6.688 inches
Distance Between Outside Surfaces Of Hinge Bracket
7.500 inches
Bottom Mounting Hole Diameter
Between 0.316 inches and 0.324 inches
Thread Series
Uns
Thread Class
2a
Mounting Hole Thread Series Designator
Unc
Mounting Hole Thread Diameter
0.312 inches
Mounting Hole Thready Qty Per Inch (tpi)
18
Mounting Hole Thread Class
2b
Thready Qty Per Inch (tpi)
20
Voltage In Volts
6.0
NSN
2920-00-371-5084
Part Number
640955
Description
Generator,engine Accessory
CAGE
89749

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.

Part 640955 NSN 2920-00-371-5084

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
17311
FIIG:
A14700
Concept No.:
1
App. Key:
A
Cond. Code:
2
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
062120
UFC:
34760
LTL:
RATING VARIABLE
LCL:
70.0
WCC:
590
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Phone: +1 470-231-0824
Email: Contact Form »
Schedule B and Export
  • Schedule B: 8511500000
  • SITC: 77831
  • End Use: Engines and engine parts (carburetors, pistons, rings, and valves)
  • NAICS: 336320
  • USDA: 1

Freight Class: Generators for internal combustion engines, nesoi

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