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Control Transformer Synchro

Model / MPN: M20708-29-01 | NSN: 5990-00-928-5593
ITAR Registered seal

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.

Product Details
NATO Stock Number
5990-00-928-5593
Sold in multiples of
1 EA
DEMIL
DEMIL/MLI
Body Material
Steel, stainless
Body Style
Standard round c
Shoulder Diameter
Between 1.5615 inches and 1.5620 inches
Pilot Diameter
Between 0.9370 inches and 0.9375 inches
Overall Length
3.0600 inches
Flange Diameter
Between 1.7450 inches and 1.7500 inches
Flange Thickness
0.0930 inches
Undercut Diameter
1.6250 inches
Undercut Width
0.0780 inches
Shaft Diameter
0.1870 inches single shaft and 0.1872 inches single shaft
Shaft Length
0.5400 inches single shaft
Maximum Tempurature Rise
20.0 degrees celsius
Body Size
18
Stator Input Voltage Rating In Volts
90.0
Stator Input Current Rating
7.0 milliamperes
Stator Input Electrical Power Rating
50.0 milliwatts
Frequency In Hertz
400.0
Zso Impedance Magnitude In Ohms
Between 12000.00 and 14800.00
Zso Impedance Angle In Deg
Between 82.00 and 84.50
Zrs Impedance Magnitude In Ohms
Between 980.00 and 1180.00
Zrs Impedance Angle In Deg
Between 42.00 and 52.00
Phase Shift Angle In Deg
2.000 input to output
Maximum Fundamental Null Voltage In Millivolts Per Volt
20.00 output
Maximum Total Null Voltage Output In Millivolts Per Volt
30.00
Electrical Error Angular Range In Minutes
-6.0/+6.0
Spline Tooth Quantity
21 single shaft
Torque Gradient Per Angular Deg
0.100 inch-ounces
Alignment Hole Quantity
4
Pilot Length
0.0400 inches
Shoulder Length
0.1320 inches
Mounting Surface To Terminal End Distance
2.5200 inches
Spline Tooth Diametral Pitch
120 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
0.2000 inches single shaft
Shaft Type
Spline w/threads single shaft
Alignment Hole Depth
0.1250 inches
Transformation Ratio
0.735 rotor to stator
Alignment Hole Bolt Circle Diameter
1.2500 inches
Shaft Thread Size
0.190 inches single shaft
Test Data Document
81349-mil-s-20708 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Terminal Type And Quantity
5 screw
Specification Data
81349-mil-s-20708/29 government specification
Solicitations
Solicitation Description Qty UOM Close Date
SPE7M219T4536 Synchro, Control Tra 27 EA 08/05/2019
SPE7M220Q0020 Synchro, Control Tra 78 EA 10/25/2019
SPE7M220T1008 Synchro, Control Tra 8 EA 12/16/2019
SPE7M220T2017 Synchro, Control Tra 9 EA 03/02/2020

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M20708-29-01 Cross Reference
  • 315-1268P2
  • 18CT4A
  • 18CT4B
  • AS20708/29
  • 18CT4C
  • V23401C0003A010
  • 18CT4
  • 18CT4C
  • 18CT4B
  • S315-1268P2
  • W41281-A6000-A10
  • M20708/29-01C
  • 450904-9153
  • M2078/29D-001
  • MIL-S-20708/29
  • M20708-29-001
  • M20708/29-01C