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Tachometer Generator NSN 6680-00-881-3916

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 6680-00-881-3916 NSN: 6680-00-881-3916

Features and Characteristics

Overall Height
8.750 inches
Overall Length
1.625 inches
Overall Width
6.875 inches
Electrical Resistance
40.0 ohms
Mounting Method
Fixed base
Mounting Facility Type And Quantity
4 unthreaded hole
Calibration Speed In Rpm
4200.0
Calibration Voltage Output Type In Volts
21.0 ac
Length Of Shaft From Housing
1.250 inches single end
Center To Center Distance Between Mounting Facilities Parallel To Length
7.250 inches
Rotor Speed Rating In Rpm
0.0 low full load and 4600.0 high full load
Center To Center Distance Between Mounting Facilities Parallel To Width
6.500 inches
Shaft End Characteristic
A5 single style single end
Special Features
2 rotor poles, absolute accuracy
Terminal Type And Quantity
2 receptacle
FSC
6680 Mechanical Motion Measuring Instruments Liquid Level Liquid And Gas Flow
NIIN
008813916
NSN
6680008813916

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
2010
Cage Code:
39739
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 6680-00-881-3916
What are the manufacturers of nsn 6680008813916?
Does this nsn 6680008813916 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 6680008813916
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 6680008813916 contain any precious metals?
Precious metal content is unknown.
Does nsn 6680008813916 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 6680008813916?
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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  •   Certificate of Conformance
  •   Quality Inspected Parts
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