The Synchro,control Transformer, cataloged under National Stock Number 5990-00-481-5603, 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29 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-00-481-5603 |
| 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 | 0.7450 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN |
| Undercut Width | 0.0620 INCHES NOMINAL IN |
| Shaft Diameter | 0.0895 INCHES MINIMUM AND 0.0900 INCHES MAXIMUM SINGLE SHAFT IN |
| Undercut Diameter | 0.6880 INCHES MINIMUM AND 0.6910 INCHES MAXIMUM IN |
| Body Style | STANDARD ROUND A |
| Flange Thickness | 0.0620 INCHES NOMINAL IN |
| Stator Input Current Rating | 30.0 MILLIAMPERES NOMINAL |
| Mounting Surface to Terminal End Distance | 1.2400 INCHES MAXIMUM IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Zro Resistance in Ohms | 446.00 NOMINAL |
| Stator Input Electrical Power Rating | 60.0 MILLIWATTS NOMINAL |
| Plus J Zso Reactance in Ohms | 350.00 NOMINAL |
| Zrs Resistance in Ohms | 548.00 NOMINAL |
| Terminal Location | REAR |
| Shaft Length | 0.3750 INCHES NOMINAL SINGLE SHAFT IN |
| Pilot Diameter | 0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN |
| Stator Input Voltage Rating in Volts | 11.8 NOMINAL |
| Maximum Total Null Voltage Output in Millivolts Per Volt | 40.00 |
| Shaft Slot Width | 0.0250 INCHES NOMINAL SINGLE SHAFT IN |
| Plus J Zro Reactance in Ohms | 1887.00 NOMINAL |
| Pilot Length | 0.0400 INCHES NOMINAL IN |
| Zso Resistance in Ohms | 79.00 NOMINAL |
| Electrical Error Angular Range in Minutes | -7.0 TO 7.0 |
| Actuator Friction Torque at Plus 25 Deg Celsius | 3.0 CENTIMETER-GRAMS NOMINAL CM |
| Actuator Friction Torque at Minus 55 Deg Celsius | 6.0 CENTIMETER-GRAMS NOMINAL CM |
| Material | STEEL CORROSION RESISTING BODY |
| Terminal Type and Quantity | 5 WIRE LEAD |
| 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 |
|---|---|
| 45-4277-01-16 | 5/9 Secondary reference U.S. Government activity |
| HTC-8-A-4/A004 | 3/2 Design control — primary reference U.S. Government activity |
| 4277-01-16 | 5/9 Secondary reference U.S. Government activity |
NSN 5990-00-481-5603 is a Synchro,control Transformer, classified under FSC 5990, Synchros and Resolvers. Status: active.
Key specifications for 5990-00-481-5603: Body Size: 8; Shaft Type: ROUND, SLOTTED SINGLE SHAFT; Flange Diameter: 0.7450 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM 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.