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Tachometer Generator NSN 6680-00-618-5821

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 6680-00-618-5821 NSN: 6680-00-618-5821

Features and Characteristics

Overall Height
2.820 inches
Overall Length
4.240 inches
Overall Width
2.820 inches
Electrical Resistance
100.0 ohms
Shaft Diameter
0.1880 inches single end
Current Type
Ac output
Shaft Rotation Direction
Clockwise single end or counterclockwise single end
Mounting Method
Swivel nut coupling
Mounting Facility Type And Quantity
1 threaded coupling
Calibration Speed In Rpm
1800.0
Calibration Voltage Output Type In Volts
18.0 ac
Features Provided
Horizontal mounting position and vertical mounting position
Length Of Shaft From Housing
0.490 inches single end
Rotor Speed Rating In Rpm
5000.0 single full load
Current Rating In Amps
0.050 single output
Shaft End Characteristic
A1 single style single end
Terminal Type And Quantity
2 binding post
FSC
6680 Mechanical Motion Measuring Instruments Liquid Level Liquid And Gas Flow
NIIN
006185821
NSN
6680006185821

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
30A-0262
Cage Code:
54374
Status:
A
MSDS:
Part Number:
328AS217
Cage Code:
30003
Status:
A
MSDS:
Part Number:
758-9905000JB2
Cage Code:
65092
Status:
A
MSDS:
Part Number:
758JB2
Cage Code:
65092
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 6680-00-618-5821
What are the manufacturers of nsn 6680006185821?
Does this nsn 6680006185821 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 6680006185821
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 6680006185821 contain any precious metals?
No precious metal content.
Does nsn 6680006185821 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 6680006185821?
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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  •   Quality Inspected Parts
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