Model: 41990

Tachometer Generator

Properties:

Overall Height
1.187 inches
Overall Length
2.263 inches
Overall Width
1.187 inches
Electrical Resistance
340.0 ohms
Shaft Diameter
0.1200 inches single end
Current Type
Dc output
Shaft Rotation Direction
Clockwise single end or counterclockwise single end
Mounting Method
Pad
Mounting Facility Type And Quantity
4 unthreaded hole
Accuracy Range In Percent
-0.1/+0.1
Calibration Speed In Rpm
12000.0
Calibration Voltage Output Type In Volts
7.0 dc
Features Provided
Horizontal mounting position and vertical mounting position
Length Of Shaft From Housing
0.502 inches single end
Rotor Speed Rating In Rpm
10.0 low full load and 12000.0 high full load
Center To Center Distance Between Mounting Facilities Parallel To Width
0.937 inches
Center To Center Distance Between Mounting Facilities Parallel To Height
0.937 inches
Current Rating In Amps
0.001 single output
Shaft End Characteristic
A1 single style single end
Terminal Type And Quantity
2 screw
NSN
6680-00-658-4443
Part Number
41990
Description
Generator,tachometer
CAGE
24930

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 41990 NSN 6680-00-658-4443

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:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.2000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
133300
UFC:
63220
LTL:
RATING VARIABLE
LCL:
--
WCC:
652
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Phone: +1 470-231-0824
Email: Contact Form »
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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