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Tachometer Generator NSN 6680-00-882-8974

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 6680-00-882-8974 NSN: 6680-00-882-8974

Features and Characteristics

Overall Length
3.377 inches
Mounting Method
Flange
Mounting Facility Type And Quantity
4 unthreaded hole
Excitor Type
Self-excited
Special Features
Diameter 1.98 inches; mounting flange 4 holes 0.281 inches diameter 1.875 inches between outers, drive shaft square drive 0.244 inches across flats; weight 18 ounces; stator single phase; rotor 12 pole permanent magnet; connector amphenol 48-15h10-2p; voltage output 14 volts at 4200 rpm with 1000 ohm resistive load; operating conditions temp range -65.5 degrees f to +320.0 degrees f; tech order 5e5-3-43-3
Fsc Application Data
Low pressure rotor tachometer; used for tf41a1 engine turbo-fan
FSC
6680 Mechanical Motion Measuring Instruments Liquid Level Liquid And Gas Flow
NIIN
008828974
NSN
6680008828974

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
6862450
Cage Code:
73342
Status:
A
MSDS:
Part Number:
3001KGAJA1
Cage Code:
058R3
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 6680-00-882-8974
What are the manufacturers of nsn 6680008828974?
Does this nsn 6680008828974 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 6680008828974
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 6680008828974 contain any precious metals?
No precious metal content.
Does nsn 6680008828974 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 6680008828974?
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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