Model: MIL-S-20708/53

Control Transformer Synchro

Properties:

Body Material
Any acceptable
Body Style
Standard round d
Shoulder Diameter
1.9900 inches
Pilot Diameter
0.6000 inches
Second Shoulder Diameter
1.9995 inches
Second Shoulder Length
0.1700 inches
Overall Length
4.2990 inches
Flange Diameter
2.2500 inches
Flange Thickness
2.5000 inches
Shaft Diameter
2.2500 inches single shaft
Shaft Length
0.6760 inches single shaft
Maximum Tempurature Rise
10.0 degrees celsius
Body Size
23
Stator Input Voltage Rating In Volts
90.0
Stator Input Current Rating
20.0 milliamperes
Stator Input Electrical Power Rating
450.0 milliwatts
Frequency In Hertz
60.0
Zso Impedance Magnitude In Ohms
Between 4200.00 and 5100.00
Zso Impedance Angle In Deg
Between 70.00 and 76.00
Zrs Impedance Magnitude In Ohms
Between 1350.00 and 1650.00
Zrs Impedance Angle In Deg
Between 14.00 and 20.00
Phase Shift Angle In Deg
14.000 input to output
Electrical Error Angular Range In Minutes
-6.0/+6.0
Spline Tooth Quantity
21 single shaft
Torque Gradient Per Angular Deg
0.2 millimeter-milligrams
Pilot Length
0.0430 inches
Shoulder Length
0.2500 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
Terminal Location
Rear
Shaft Thread Length
0.3100 inches single shaft
Shaft Type
Spline w/threads single shaft
Transformation Ratio
0.735 rotor to stator
Shaft Thread Size
0.250 inches single shaft
Terminal Type And Quantity
5 screw
NSN
5990-00-677-6496
Part Number
MIL-S-20708/53
Description
Synchro,control Transformer
CAGE
81349

A synchro consisting of a stator and rotor inductively coupled. The electrical output of the rotor is dependent upon both the position of the rotor and the electrical input to the stator from a transmitter synchro or a differential synchro. Does not include variable resistors, goniometers, or variable transformers.

Part MIL-S-20708/53 NSN 5990-00-677-6496

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15289
FIIG:
A07800
Concept No.:
1
App. Key:
B
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:
70.0
WCC:
590
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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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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