Model: 3957523

Engine Accessory Generator

Special Features:

Furnished w/two mtg spacers to change lower mtg hole to 0.382 in.Min/0.388 in.Max diameter by 1.990 in.Min/2.000 in.Max lg

Properties:

Thread Direction
Right-hand
Thread Length
Between 0.560 inches and 0.620 inches
Pilot Diameter
Any acceptable
Furnished Items
Cooling fan
Second Step Diameter
0.669 inches
Keyway Width
0.156 inches
Unthreaded Portion Length
Between 0.830 inches and 0.860 inches
Mounting Style
Flange mtd w/three mtg holes
Center To Center Distance Between Mounting Holes Along Width
4.807 inches
Pilot Height
Any acceptable
Keyway Length
0.750 inches
Submersibility
Nonsubmersible
Shaft Rotation Direction
Clockwise or counterclockwise
Distance From End To Keyway Center
Between 1.060 inches and 1.180 inches
Thread Diameter
0.500 inches
Ground Polarity Type
Negative or positive
Armature Minimum Speed In Rpm At Full Current Output
4500
Maximum Output Current Rating In Amps
105.0
Rectifier Location
Integral
Grounding Method
External
Shaft Drive End Style
Straight shaft end, threaded, w/keyway
Distance Between Shaft Center And Bottom Mounting Hole Center
Between 4.160 inches and 4.220 inches
Top Mounting Hole Diameter
Between 0.390 inches and 0.420 inches
Bottom Mounting Hole Diameter
Between 0.624 inches and 0.630 inches
Center To Center Distance Between Top Mounting Slot And Bottom Mounting Hole
Between 8.320 inches and 8.440 inches
Maximum Rated Armature Speed In Rpm
12000
Thread Series
Unf
Thread Class
2a
Thready Qty Per Inch (tpi)
20
Voltage In Volts
14.0
NSN
2920-01-075-4697
Part Number
3957523
Description
Generator,engine Accessory
CAGE

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 3957523 NSN 2920-01-075-4697

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
062120
UFC:
34760
LTL:
65.0
LCL:
--
WCC:
593
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Have a Question

Hours: 08:00-18:00 Eastern Standard Time
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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