Model: 499-038-074

Tachometer Generator

Properties:

Shaft Rotation Direction
Clockwise single end or counterclockwise single end
Mounting Method
Face
Mounting Facility Type And Quantity
3 threaded hole
Accuracy Range In Percent
-0.1/+0.1
Calibration Speed In Rpm
1000.0
Calibration Voltage Output Type In Volts
7.0 dc
Features Provided
Horizontal mounting position and vertical mounting position
Mounting Facility Circle Diameter
0.875 inches
Shaft End Characteristic
A6 single style single end
Terminal Type And Quantity
2 solder lug
NSN
6680-01-022-6753
Part Number
499-038-074
Description
Generator,tachometer
CAGE
07421

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.

Part 499-038-074 NSN 6680-01-022-6753

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
20241
FIIG:
A271A0
Concept No.:
1
App. Key:
F
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
CI
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
062120
UFC:
34760
LTL:
RATING VARIABLE
LCL:
70.0
WCC:
590
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 9029205000
  • SITC: 87325
  • End Use: Other parts and accessories of vehicles
  • NAICS: 334514
  • USDA: 1

Freight Class: Speedometers and tachometers, not for use in civil aircraft

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