The Synchro,control Transformer, cataloged under National Stock Number 5990-01-026-8628, 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29 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5990-01-026-8628 |
| Item Name | Synchro,control Transformer |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Status | ACTIVE |
| Body Size | 15 |
| Shaft Type | ROUND, TAPERED, HOLLOWED SINGLE SHAFT |
| Flange Diameter | 1.4370 INCHES NOMINAL IN |
| Undercut Width | 0.0780 INCHES NOMINAL IN |
| Shaft Diameter | 0.1250 INCHES NOMINAL SINGLE SHAFT IN |
| Rotor DC Resistance in Ohms | 475.00 NOMINAL |
| Shaft Tapered End Minor Diameter | 0.0775 INCHES NOMINAL SINGLE SHAFT IN |
| Length | 0.1320 INCHES NOMINAL SHOULDER IN |
| Body Style | STANDARD ROUND B |
| Shaft Hole Diameter | 0.0470 INCHES NOMINAL SINGLE SHAFT IN |
| Flange Thickness | 0.0930 INCHES NOMINAL IN |
| Stator Input Current Rating | 67.0 MILLIAMPERES NOMINAL |
| Alignment Hole Bolt Circle Diameter | 0.8750 INCHES NOMINAL IN |
| Phase Shift Angle in Deg | 1.000 INPUT TO OUTPUT MINIMUM AND 2.600 INPUT TO OUTPUT MAXIMUM |
| Mounting Surface to Terminal End Distance | 1.6000 INCHES MAXIMUM IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Zro Resistance in Ohms | 1530.00 NOMINAL |
| Stator Input Electrical Power Rating | 110.0 MILLIWATTS NOMINAL |
| Plus J Zso Reactance in Ohms | 1510.00 NOMINAL |
| Terminal Location | REAR |
| Alignment Hole Quantity | 4 |
| Shaft Length | 0.3840 INCHES NOMINAL SINGLE SHAFT IN |
| Pilot Diameter | 0.5000 INCHES NOMINAL IN |
| Shoulder Diameter | 1.3120 INCHES NOMINAL IN |
| Stator Input Voltage Rating in Volts | 11.8 NOMINAL |
| Shaft Taper Length | 0.1940 INCHES NOMINAL SINGLE SHAFT IN |
| Alignment Hole Depth | 0.1250 INCHES NOMINAL IN |
| Plus J Zro Reactance in Ohms | 8350.00 NOMINAL |
| Pilot Length | 0.0400 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| CTH-15-AD-5/A473 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5990-01-026-8628 is a Synchro,control Transformer, classified under FSC 5990, Synchros and Resolvers. Status: active.
Key specifications for 5990-01-026-8628: Body Size: 15; Shaft Type: ROUND, TAPERED, HOLLOWED SINGLE SHAFT; Flange Diameter: 1.4370 INCHES NOMINAL IN; Undercut Width: 0.0780 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.
NSN 5990-01-026-8628 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.