Model: S820M431

Tachometer Generator

Properties:

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
NSN
6680-00-923-0690
Part Number
S820M431
Description
Generator,tachometer
CAGE
14351

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 S820M431 NSN 6680-00-923-0690

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:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
3.1000lbs
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:
062120
UFC:
34760
LTL:
RATING VARIABLE
LCL:
--
WCC:
590
TCC:
Z
SHC:
Z
ACC:
Instruments/Radio

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Hours: 08:00-18:00 Eastern Standard Time
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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