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Tachometer Generator NSN 6680-00-923-0690

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 6680-00-923-0690 NSN: 6680-00-923-0690

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Features and Characteristics

Overall Height
2.530 inches
Overall Length
6.810 inches
Overall Width
2.530 inches
Shaft Diameter
2.5310 inches single end
Flatted Portion Length
0.4680 inches single end
Shaft Rotation Direction
Clockwise single end or counterclockwise single end
Width Across Flats
0.2440 inches single end
Mounting Method
Flange
Mounting Facility Type And Quantity
4 unthreaded hole
Accuracy Range In Percent
-0.3/+0.3
Calibration Speed In Rpm
1000.0
Calibration Voltage Output Type In Volts
24.0 dc
Features Provided
Horizontal mounting position and vertical mounting position
Length Of Shaft From Housing
0.470 inches single end
Mounting Facility Circle Diameter
1.875 inches
Rotor Speed Rating In Rpm
250.0 low full load and 1500.0 high full load
Shaft End Characteristic
A15 single style single end
Terminal Type And Quantity
1 receptacle
FSC
6680 Mechanical Motion Measuring Instruments Liquid Level Liquid And Gas Flow
NIIN
009230690
NSN
6680009230690

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
S820M431
Cage Code:
14351
Status:
A
MSDS:
Part Number:
511-D
Cage Code:
57733
Status:
A
MSDS:
Part Number:
13207E5416
Cage Code:
97403
Status:
A
MSDS:
Part Number:
511
Cage Code:
57733
Status:
A
MSDS:
Part Number:
BF5416
Cage Code:
80212
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 6680-00-923-0690
What are the manufacturers of nsn 6680009230690?
Does this nsn 6680009230690 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 6680009230690
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 6680009230690 contain any precious metals?
No precious metal content.
Does nsn 6680009230690 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 6680009230690?
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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