Model: 421664-2

Motor-tachometer Generator

Properties:

Overall Height
1.062 inches
Overall Length
3.051 inches
Overall Width
1.062 inches
Spline Minor Diameter
0.1083 inches single end
Spline Quantity
13 single end
Shaft Diameter
0.1247 inches single end
Current Type
Ac input
Maximum Operating Altitude Rating
75000.0 feet
Inclosure Feature
Totally enclosed
Spline Length
0.3750 inches single end
Mounting Method
Face
Mounting Facility Type And Quantity
1 clamp collar and 4 threaded hole
Excitor Type
Separately excited
Calibration Speed In Rpm
1000.0
Cooling Method
Nonventilated
Calibration Voltage Output Type In Volts
0.6 ac
Torque Rating And Type
0.6 inch-ounces stalled
Inclosure Specificationification
Commercial
Control Field Voltage Type And Rating In Volts
115.0 ac
Features Provided
Horizontal mounting position and vertical mounting position
Power Rating
3.500 watts output
Length Of Shaft From Housing
0.375 inches single end
Tempurature Rating
-55.0 operating degrees celsius and 90.0 operating degrees celsius
Mounting Facility Circle Diameter
0.812 inches
Rotor Speed Rating In Rpm
7000.0 single no load
Connection Type And Voltage Rating In Volts
115.0 line to neutral single input
Shaft End Characteristic
A14 single style single end
Phase
Single input
Frequency In Hertz
400.0 output
Terminal Type And Quantity
10 wire lead
NSN
6105-00-660-8129
Part Number
421664-2
Description
Motor-tachometer Generator
CAGE
88818

An item which is an electrical rotating machine combining both control motor and tachometer generator action. The control motor and tachometer generator may be contained in the same or separate housings. It is designed for servo application where instant response to input signal is essential. It is generally used in circuits where the output potential from the tachometer generator is fed back to prevent excessive oscillation and for assuring high stability in a servo loop. Excludes dynamotor; and motor-generator.

Part 421664-2 NSN 6105-00-660-8129

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
28454
FIIG:
A271A0
Concept No.:
App. Key:
P
Cond. Code:
1
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:
--
WCC:
593
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8412809000
  • SITC: 71893
  • End Use: Industrial engines
  • NAICS: 333618
  • USDA: 1

Freight Class: Engines and motors, nesoi

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