Model: 721G1

Engine Accessory Generator

Properties:

Thread Direction
Right-hand
Thread Length
0.375 inches
Furnished Items
Lockwasher and nut and woodruff key
Second Step Diameter
Between 0.6684 inches and 0.669 inches
Keyway Width
0.125 inches
Unthreaded Portion Length
0.710 inches
Mounting Hole Thread Direction
Right-hand
Mounting Style
Bracket mtd w/three mtg holes, top hole threaded
Keyway Length
0.625 inches
Submersibility
Nonsubmersible
Maximum Operating Altitude Rating
Not rated
Shaft Rotation Direction
Clockwise
Distance From End To Keyway Center
0.766 inches
Thread Diameter
0.669 inches
Ground Polarity Type
Negative
Armature Minimum Speed In Rpm At Full Current Output
2500
Maximum Output Current Rating In Amps
25.0
Minimum Current Cut-in Speed In Rpm
1100
Grounding Method
Internal
Shaft Drive End Style
Straight shaft end, threaded, w/keyway
Distance Between Shaft Center And Bottom Mounting Hole Center
3.380 inches
Distance Between Shaft Center And Top Mounting Hole Center
3.190 inches
Angular Deviation Of First Hole From Top Center In Deg
180.0
Angular Deviation Of Second Hole From First Hole In Deg
163.0
Distance Between Inside Surfaces Of Hinge Bracket
Between 6.118 inches and 6.131 inches
Distance Between Outside Surfaces Of Hinge Bracket
Between 6.998 inches and 7.011 inches
Bottom Mounting Hole Diameter
Between 0.323 inches and 0.333 inches
Maximum Rated Armature Speed In Rpm
8000
Thread Series
Uns
Thread Class
2a
Mounting Hole Thread Series Designator
Unc
Mounting Hole Thread Diameter
1.312 inches
Mounting Hole Thready Qty Per Inch (tpi)
18
Mounting Hole Thread Class
2b
Thready Qty Per Inch (tpi)
20
Voltage In Volts
12.0
Fsc Application Data
Engine electrical system, nonaircraft
NSN
2920-00-936-8247
Part Number
721G1
Description
Generator,engine Accessory
CAGE
05415

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 721G1 NSN 2920-00-936-8247

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:
16.0000lbs
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:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
062120
UFC:
34760
LTL:
RATING VARIABLE
LCL:
--
WCC:
593
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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