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Worldwide distributor of NSN parts and consumables located in the USA.

Control Transformer Synchro

Model / MPN: 55139 | NSN: 5990-00-115-5851
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
5990-00-115-5851
Sold in multiples of
1 EA
DEMIL
NO
Body Material
Steel, corrosion resisting
Body Style
Standard round c
Shoulder Diameter
0.8123 inches
Pilot Diameter
0.5000 inches
Overall Length
1.6540 inches
Flange Diameter
0.9370 inches
Flange Thickness
0.0620 inches
Undercut Diameter
0.8370 inches
Undercut Width
0.0620 inches
Shaft Diameter
0.0900 inches single shaft
Shaft Length
0.3750 inches single shaft
Schematic Diagram Designator
1 y-rotor, 1 stator
Fragility Factor
Moderately rugged
Body Size
10
Stator Input Voltage Rating In Volts
26.0
Stator Input Current Rating
12.0 milliamperes
Stator Input Electrical Power Rating
80.0 milliwatts
Frequency In Hertz
400.0
Zro Resistance In Ohms
595.00
Zso Resistance In Ohms
126.00
Zrs Resistance In Ohms
750.00
Rotor Dc Resistance In Ohms
410.00
Stator Dc Resistance In Ohms
126.00
Phase Shift Angle In Deg
11.000 input to output
Electrical Error Angular Range In Minutes
-10.0/+10.0
Actuator Friction Torque At Minus 55 Deg Celsius
20.0 centimeter-grams
Actuator Friction Torque At Plus 25 Deg Celsius
4.0 centimeter-grams
Shaft Radial Play Test Point
0.125 inches
Shaft Maximum Radial Play
0.0008 inches
Shaft End Play
Between 0.0003 inches and 0.0015 inches
Pilot Length
0.0380 inches
Shoulder Length
0.0630 inches
Mounting Surface To Terminal End Distance
1.2410 inches
Shaft Maximum Runout
0.0010 inches
Terminal Location
Rear
Plus J Zro Reactance In Ohms
2130.00
Shaft Slot Depth
0.0250 inches single shaft
Plus J Zso Reactance In Ohms
427.00
Shaft Slot Width
0.0200 inches single shaft
Plus J Zrs Reactance In Ohms
369.00
Shaft Type
Round, slotted single shaft
Shaft Radial Play Determining Weight
1.411 ounces
Shaft End Play Determining Weight
3.0 ounces
Terminal Type And Quantity
5 screw

Pricing and Availability

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55139 Cross Reference
  • 7901521-2
  • AY100UY-59-A6
  • 10CT-302-E-36/10
  • ETH-10-CKS-004/A004
  • AY100UY-59-A6