The Synchro,control Transformer, cataloged under National Stock Number 5990-01-227-6526, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Honeywell International Inc. Dba Honeywell International. Government technical data includes 29 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-01-227-6526 |
| Primary Part Number | 2578509-3 |
| Item Name | Synchro,control Transformer |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | Honeywell International Inc. Dba Honeywell International |
| Status | ACTIVE |
| Body Size | 11 |
| Shaft Type | ROUND, SLOTTED SINGLE SHAFT |
| Flange Diameter | 1.0620 INCHES NOMINAL IN |
| Undercut Width | 0.0450 INCHES NOMINAL IN |
| Shaft Diameter | 0.1200 INCHES NOMINAL SINGLE SHAFT IN |
| Rotor DC Resistance in Ohms | 16.00 NOMINAL |
| Undercut Diameter | 0.9800 INCHES NOMINAL IN |
| Length | 0.0620 INCHES NOMINAL SHOULDER IN |
| Body Style | STANDARD ROUND C |
| Flange Thickness | 0.0620 INCHES NOMINAL IN |
| Stator Input Current Rating | 174.0 MILLIAMPERES NOMINAL |
| Zro Impedance Angle in Deg | 77.70 NOMINAL |
| Phase Shift Angle in Deg | 6.300 INPUT TO OUTPUT NOMINAL |
| Mounting Surface to Terminal End Distance | 1.6250 INCHES MAXIMUM IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Stator Input Electrical Power Rating | 960.0 MILLIWATTS NOMINAL |
| Terminal Location | REAR |
| Zso Impedance Angle in Deg | 70.00 NOMINAL |
| Shaft Length | 0.6260 INCHES NOMINAL SINGLE SHAFT IN |
| Pilot Diameter | 0.5000 INCHES NOMINAL IN |
| Zso Impedance Magnitude in Ohms | 23.00 NOMINAL |
| Shoulder Diameter | 1.0000 INCHES NOMINAL IN |
| Stator Input Voltage Rating in Volts | 26.0 NOMINAL |
| Maximum Total Null Voltage Output in Millivolts Per Volt | 35.00 |
| Shaft Slot Width | 0.0250 INCHES NOMINAL SINGLE SHAFT IN |
| Transformation Ratio | 0.454 STATOR TO ROTOR NOMINAL |
| Pilot Length | 0.0620 INCHES NOMINAL IN |
| Actuator Friction Torque at Plus 25 Deg Celsius | 4.0 CENTIMETER-GRAMS NOMINAL CM |
| Actuator Friction Torque at Minus 55 Deg Celsius | 16.0 CENTIMETER-GRAMS NOMINAL CM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 11TX-11A5-AB | Cda Intercorp Llc (USA) |
| 2578509-3 PRIMARY | Honeywell International Inc. Dba Honeywell International (USA) |
| Reference | Meaning |
|---|---|
| CR40210003 | 5/2 Secondary reference U.S. Government activity |
| 11CG5-009 | 5/9 Secondary reference U.S. Government activity |
NSN 5990-01-227-6526 is a Synchro,control Transformer, manufactured by Honeywell International Inc. Dba Honeywell International, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-01-227-6526 has 2 manufacturer part numbers on file: 11TX-11A5-AB (Cda Intercorp Llc), 2578509-3 (Honeywell International Inc. Dba Honeywell International).
Key specifications for 2578509-3: Body Size: 11; Shaft Type: ROUND, SLOTTED SINGLE SHAFT; Flange Diameter: 1.0620 INCHES NOMINAL IN; Undercut Width: 0.0450 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.