The Synchro,control Transformer, cataloged under National Stock Number 5990-00-709-9187, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. Government technical data includes 29 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-00-709-9187 |
| Item Name | Synchro,control Transformer |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Status | ACTIVE |
| Body Size | 8 |
| Shaft Type | ROUND, SLOTTED SINGLE SHAFT |
| Flange Diameter | 0.7500 INCHES NOMINAL IN |
| Undercut Width | 0.0620 INCHES NOMINAL IN |
| Shaft Diameter | 0.1200 INCHES NOMINAL SINGLE SHAFT IN |
| Rotor DC Resistance in Ohms | 478.00 NOMINAL |
| Undercut Diameter | 0.6870 INCHES NOMINAL IN |
| Body Style | STANDARD ROUND A |
| Shaft Radial Play Determining Weight | 4.0 OUNCES OZ |
| Flange Thickness | 0.0620 INCHES NOMINAL IN |
| Shaft Maximum Runout | 0.0010 INCHES IN |
| Stator Input Current Rating | 32.0 MILLIAMPERES NOMINAL |
| Phase Shift Angle in Deg | 9.000 OUTPUT TO INPUT NOMINAL |
| Mounting Surface to Terminal End Distance | 1.2810 INCHES MAXIMUM IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Zro Resistance in Ohms | 734.00 NOMINAL |
| Stator Input Electrical Power Rating | 110.0 MILLIWATTS NOMINAL |
| Terminal Location | REAR |
| Shaft End Play Determining Weight | 1.0 OUNCES OZ |
| Shaft Maximum Radial Play | 0.0008 INCHES IN |
| Schematic Diagram Designator | 1 Y-ROTOR, 1 STATOR |
| Shaft Length | 0.4310 INCHES NOMINAL SINGLE SHAFT IN |
| Pilot Diameter | 0.5000 INCHES NOMINAL IN |
| Maximum Fundamental Null Voltage in Millivolts Per Volt | 30.00 OUTPUT |
| Stator Input Voltage Rating in Volts | 26.0 NOMINAL |
| Maximum Total Null Voltage Output in Millivolts Per Volt | 40.00 |
| Shaft Slot Width | 0.0300 INCHES NOMINAL SINGLE SHAFT IN |
| Plus J Zro Reactance in Ohms | 2400.00 NOMINAL |
| Transformation Ratio | 2.203 STATOR TO ROTOR NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 172083-001 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5990-00-709-9187 is a Synchro,control Transformer, classified under FSC 5990, Synchros and Resolvers. Status: active.
Key specifications for 5990-00-709-9187: Body Size: 8; Shaft Type: ROUND, SLOTTED SINGLE SHAFT; Flange Diameter: 0.7500 INCHES NOMINAL IN; Undercut Width: 0.0620 INCHES NOMINAL IN. 29 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.