Model: MIL-S-20708/45

Transmitter Synchro

Properties:

Body Material
Steel, corrosion resisting
Body Style
Standard round d
Shoulder Diameter
1.9950 inches
Pilot Diameter
0.5950 inches
Second Shoulder Diameter
1.9995 inches
Second Shoulder Length
0.1700 inches
Overall Length
4.3420 inches
Flange Diameter
2.2500 inches
Flange Thickness
0.2500 inches
Body Diameter
1.9900 inches
Shaft Diameter
0.2405 inches single shaft
Shaft Length
0.7190 inches single shaft
Maximum Tempurature Rise
20.0 degrees celsius
Body Size
8
Rotor Input Voltage Rating In Volts
115.0
Frequency In Hertz
400.0
Rotor Input Current Rating
245.0 milliamperes
Rotor Input Electrical Power Rating
1.7 watts
Zro Impedance Magnitude In Ohms
Between 470.00 and 580.00
Zro Impedance Angle In Deg
Between 84.00 and 87.50
Zss Impedance Magnitude In Ohms
Between 21.60 and 26.00
Zss Impedance Angle In Deg
Between 42.00 and 47.00
Phase Shift Angle In Deg
1.000 input to output
Maximum Fundamental Null Voltage In Millivolts Per Volt
32.00 input
Maximum Total Null Voltage Output In Millivolts Per Volt
48.00
Electrical Error Angular Range In Minutes
-6.0/+6.0
Spline Tooth Quantity
22 single shaft
Actuator Friction Torque At Plus 25 Deg Celsius
0.20 inch-ounces
Alignment Hole Quantity
4
Shaft Maximum Radial Play
0.0010 inches
Shaft End Play
0.0025 inches
Pilot Length
0.0430 inches
Shoulder Length
0.2930 inches
Aft Of First Flange Diameter
1.9995 inches
Mounting Surface To Terminal End Distance
3.1600 inches
Spline Tooth Diametral Pitch
96 single shaft
Shaft Thread Series Designator
Unf single shaft
Shaft Thread Direction
Right-hand single shaft
Shaft Thread Class
2a single shaft
Terminal Location
Rear
Shaft Thread Length
0.3330 inches single shaft
Shaft Type
Spline w/threads single shaft
Alignment Hole Depth
0.0640 inches
Transformation Ratio
0.783 rotor to stator
Alignment Hole Bolt Circle Diameter
1.4370 inches
Shaft Thread Size
0.250 inches single shaft
Terminal Type And Quantity
5 screw
NSN
5990-01-066-0461
Part Number
MIL-S-20708/45
Description
Synchro,transmitter
CAGE
81349

A synchro consisting of a stator and rotor inductively coupled. The electrical output of the stator into a receiver synchro, a control transformer or differential synchro is dependent upon the position of its rotor. Does not include variable resistors, goniometers, variable transformers, or items with dials.

Part MIL-S-20708/45 NSN 5990-01-066-0461

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
02073
FIIG:
A07800
Concept No.:
1
App. Key:
H
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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
062120
UFC:
34760
LTL:
RATING VARIABLE
LCL:
--
WCC:
593
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 9014900000
  • SITC: 87412
  • End Use: Marine engines, parts
  • NAICS: 334511
  • USDA: 1

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