Model: 974

Engine Accessory Generator

Properties:

Thread Direction
Right-hand
Thread Length
0.844 inches
Spline Minor Diameter
Between 0.690 inches and 0.698 inches
Spline Major Diameter
Between 0.874 inches and 0.8745 inches
Spline Width
Between 0.216 inches and 0.217 inches
Spline Quantity
6
Mounting Hole Thread Direction
Right-hand
Environmental Protection
Corrosion resistant and fungus resistant
Submersibility
Nonsubmersible
Maximum Operating Altitude Rating
Not rated
Shaft Rotation Direction
Clockwise
Thread Diameter
0.625 inches
Spline Length
2.000 inches
Ground Polarity Type
Negative or positive
Armature Minimum Speed In Rpm At Full Current Output
950
Maximum Output Current Rating In Amps
55.0
Grounding Method
Internal
Shaft Drive End Style
Tapered shaft end, threaded w/keyway
Distance Between Shaft Center And Bottom Mounting Hole Center
4.875 inches
Distance Between Shaft Center And Top Mounting Hole Center
4.500 inches
Angular Deviation Of First Hole From Top Center In Deg
0.0
Angular Deviation Of Second Hole From First Hole In Deg
180.0
Distance Between Inside Surfaces Of Hinge Bracket
Between 4.277 inches and 4.287 inches
Distance Between Outside Surfaces Of Hinge Bracket
Between 5.371 inches and 5.381 inches
Top Mounting Hole Diameter
Between 0.627 inches and 0.629 inches
Maximum Rated Armature Speed In Rpm
Not rated
Thread Series
Unf
Thread Class
2a
Mounting Hole Thread Series Designator
Unf
Mounting Hole Thread Diameter
0.500 inches
Mounting Hole Thready Qty Per Inch (tpi)
20
Mounting Hole Thread Class
2b
Thready Qty Per Inch (tpi)
18
Voltage In Volts
12.0
Fsc Application Data
Engineelectrical system, nonaircraft
NSN
2920-00-377-5253
Part Number
974
Description
Generator,engine Accessory
CAGE
16764

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 974 NSN 2920-00-377-5253

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:
A
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:
M
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
F
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
062120
UFC:
34760
LTL:
RATING VARIABLE
LCL:
--
WCC:
590
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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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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