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Control Transformer Synchro

NSN: 5990-00-810-1518 | Model: U904-001

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.

NSN Properties and Flags
NATO Stock Number
5990-00-810-1518
DEMIL
NO
Body Material
Steel, stainless
Body Style
Standard round, rotatable stator c
Shoulder Diameter
Between 0.9995 inches and 1.0000 inches
Pilot Diameter
0.6250 inches
Overall Length
Between 2.9630 inches and 3.0450 inches
Flange Diameter
Between 1.1850 inches and 1.1910 inches
Flange Thickness
Between 0.0900 inches and 0.0960 inches
Undercut Diameter
Between 1.1050 inches and 1.1130 inches
Undercut Width
0.0500 inches
Shaft Diameter
0.1195 inches front shaft and 0.1200 inches front shaft
Shaft Length
0.3950 inches front shaft
Fragility Factor
Moderately rugged
Body Size
12
Stator Input Voltage Rating In Volts
11.8
Stator Input Current Rating
21.0 milliamperes
Stator Input Electrical Power Rating
50.0 milliwatts
Frequency In Hertz
400.0
Zro Resistance In Ohms
625.00
Zso Resistance In Ohms
93.00
Zrs Resistance In Ohms
570.00
Zss Resistance In Ohms
106.00
Rotor Dc Resistance In Ohms
385.00
Stator Dc Resistance In Ohms
60.00
Phase Shift Angle In Deg
4.200 output to input
Maximum Fundamental Null Voltage In Millivolts Per Volt
34.00 input
Maximum Total Null Voltage Output In Millivolts Per Volt
53.00
Electrical Error Angular Range In Minutes
-10.0/+10.0
Actuator Friction Torque At Minus 55 Deg Celsius
120.0 centimeter-grams
Actuator Friction Torque At Plus 25 Deg Celsius
30.0 centimeter-grams
Shaft Radial Play Test Point
0.125 inches
Shaft Maximum Radial Play
0.0050 inches
Shaft End Play
Between 0.0003 inches and 0.0005 inches
Pilot Length
0.0590 mils and 0.0650 centimeters
Shoulder Length
0.0590 mils and 0.0650 centimeters
Mounting Surface To Terminal End Distance
2.3110 inches
Shaft Maximum Runout
0.0010 inches
Terminal Location
Rear
Plus J Zro Reactance In Ohms
3280.00
Plus J Zso Reactance In Ohms
570.00
Plus J Zrs Reactance In Ohms
330.00
Shaft Type
Round both shafts
Plus J Zss Reactance In Ohms
68.00
Transformation Ratio
2.203 rotor to stator
Shaft Radial Play Determining Weight
4.0 ounces
Shaft End Play Determining Weight
16.0 ounces
Terminal Type And Quantity
5 wire lead

Pricing and Availability

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NSN 5990-00-810-1518 Datasheet

Supply Class (FSC):
Synchros And Resolvers
Cross Reference:
  • U904-001
  • 124851-02
  • U904-001-D
  • 464090-2
Cage Codes:
  • Kearfott Corporation (CAGE 88818)
  • Ge Aviation Systems Llc (CAGE 35351)
  • Raytheon Company (CAGE 96214)
Schedule B & Trade:
  • Schedule B: 9014900000 (NAICS 334511)

    Parts & accessories for direction finding compasses and other navigational instruments and appliances

  • SITC: 87412

    Parts and accessories of navigational instruments and appliances

  • End Use: 22220

    Marine engines, parts

Identification:
HMIC

N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

PMIC

U - Precious metal content is unknown

CRITL

- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:
  • NMFC:

    062120 - Generators/motors/parts noi

  • WCC:

    593 - Motors and parts, (machinery and parts),(less than 35 feet)

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • ACC:

    H - Instruments/equipment/supplies for radio, communications, electrical, laboratory, etc. (includes signal corps)

  • LTL:

    W - Rating variable

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
    Sms
  • AAC
    J
  • Quantity per pack
    1
  • Unit of Measure
    Ea
  • Shelf Life
    N/A
  • Classification Control
    U
  • MGMT_CTL
    9b-----
  • Repariability

Questions & Answers:
What are the historical prices recorded for this stock number?
Historical data shows pricing from $2,020.95 to $3,368.25..
Does NSN 5990-00-810-1518 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Navy
What is the NIIN of NSN 5990-00-810-1518?
008101518 or 00-810-1518
Does NSN 5990-00-810-1518 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5990-00-810-1518?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 01, 1962