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Tachometer Generator NSN 6680-00-050-9721

Item Description

A generator consisting of a series of mounted coils surrounding a rotating permanent magnet or a permanent magnet and a rotating armature. The voltage output is directly proportional to the speed of rotation of the shaft. When used with an associated indicator, transmits such data as revolutions per minute, speed of travel, and the like. May also be used in servomechanism loops as a system stabilizer. Excludes rotary inverters, rotary converters, motor generators, dynamotors, generator sets, synchros, frequency or phase changers, and engine accessory generators.

NSN 6680-00-050-9721 NSN: 6680-00-050-9721

Features and Characteristics

Overall Length
1.996 inches
Overall Width
0.750 inches
Electrical Resistance
360.0 ohms
Shaft Diameter
0.1247 inches single end
Flatted Portion Length
0.5000 inches single end
Flat Depth
0.0207 inches single end
Mounting Method
Clamp ring
Mounting Facility Type And Quantity
1 clamp collar
Accuracy Range In Percent
-3.0 to 3.0
Calibration Speed In Rpm
1000.0
Calibration Voltage Output Type In Volts
5.0 dc
Length Of Shaft From Housing
0.560 inches single end
Rotor Speed Rating In Rpm
1000.0 low full load and 6000.0 high full load
Connection Type And Voltage Rating In Volts
5.0 line to neutral single output
Shaft End Characteristic
A5 single style single end
Terminal Type And Quantity
2 threaded stud
FSC
6680 Mechanical Motion Measuring Instruments Liquid Level Liquid And Gas Flow
NIIN
000509721
NSN
6680000509721

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
DC8AJ7C140
Cage Code:
99932
Status:
A
MSDS:
Part Number:
DC8AJ7
Cage Code:
99932
Status:
A
MSDS:
Part Number:
580R212H01
Cage Code:
97942
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 9029205000
  • NAICS: 334514
  • SITC: 87325
  • Description: Speedometers and tachometers, not for use in civil aircraft
  • End Use (Code 30230):
    Other parts and accessories of vehicles

Q & A

Frequently asked questions for NSN 6680-00-050-9721
What are the manufacturers of nsn 6680000509721?
Does this nsn 6680000509721 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 6680000509721
A generator consisting of a series of mounted coils surrounding a rotating permanent magnet or a permanent magnet and a rotating armature. the voltage output is directly proportional to the speed of rotation of the shaft. when used with an associated indicator, transmits such data as revolutions per minute, speed of travel, and the like. may also be used in servomechanism loops as a system stabilizer. excludes rotary inverters, rotary converters, motor generators, dynamotors, generator sets, synchros, frequency or phase changers, and engine accessory generators.
Does nsn 6680000509721 contain any precious metals?
No precious metal content.
Does nsn 6680000509721 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 6680000509721?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
20241
FIIG:
A271A0
App. Key:
F
Cond. Code:
1
Status:
A

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