The Synchro,control Transformer, cataloged under National Stock Number 5990-00-603-9286, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Ge Aviation Systems Llc. Government technical data includes 29 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-00-603-9286 |
| Primary Part Number | 137030-05 |
| Item Name | Synchro,control Transformer |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | Ge Aviation Systems Llc |
| Status | ACTIVE |
| Body Size | 8 |
| Shaft Type | ROUND, SLOTTED SINGLE SHAFT |
| Flange Diameter | 0.7500 INCHES NOMINAL IN |
| Undercut Width | 0.0570 INCHES MINIMUM IN |
| Shaft Diameter | 0.0895 INCHES MINIMUM AND 0.0900 INCHES MAXIMUM SINGLE SHAFT IN |
| Rotor DC Resistance in Ohms | 365.00 NOMINAL |
| Undercut Diameter | 0.6910 INCHES MAXIMUM IN |
| Body Style | STANDARD ROUND A |
| Flange Thickness | 0.0620 INCHES NOMINAL IN |
| Stator Input Current Rating | 40.0 AMPERES NOMINAL |
| Phase Shift Angle in Deg | 8.500 INPUT TO OUTPUT NOMINAL |
| Mounting Surface to Terminal End Distance | 1.2410 INCHES MAXIMUM IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Zro Resistance in Ohms | 470.00 NOMINAL |
| Stator Input Electrical Power Rating | 100.0 MILLIWATTS NOMINAL |
| Plus J Zso Reactance in Ohms | 330.00 NOMINAL |
| Zrs Resistance in Ohms | 590.00 NOMINAL |
| Terminal Location | REAR |
| Shaft Length | 0.4850 INCHES MINIMUM AND 0.5150 INCHES MAXIMUM SINGLE SHAFT IN |
| Pilot Diameter | 0.5000 INCHES NOMINAL IN |
| Maximum Fundamental Null Voltage in Millivolts Per Volt | 40.00 OUTPUT |
| Stator Input Voltage Rating in Volts | 10.2 MINIMUM AND 11.8 MAXIMUM |
| Maximum Total Null Voltage Output in Millivolts Per Volt | 60.00 |
| Shaft Slot Width | 0.0310 INCHES NOMINAL SINGLE SHAFT IN |
| Plus J Zro Reactance in Ohms | 1700.00 NOMINAL |
| Transformation Ratio | 2.182 ROTOR TO STATOR NOMINAL |
| Pilot Length | 0.0430 INCHES NOMINAL IN |
| Zso Resistance in Ohms | 81.00 NOMINAL |
| Electrical Error Angular Range in Minutes | -15.0 TO 15.0 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 137030-05 PRIMARY | Ge Aviation Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| CM41004158 | 3/2 Design control — primary reference U.S. Government activity |
| CM41004158 | 5/9 Secondary reference Kearfott Corp Soma Forwarding Div |
| CTH8BA4L798 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5990-00-603-9286 is a Synchro,control Transformer, manufactured by Ge Aviation Systems Llc, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-00-603-9286 has 1 manufacturer part number on file: 137030-05 (Ge Aviation Systems Llc).
Key specifications for 137030-05: Body Size: 8; Shaft Type: ROUND, SLOTTED SINGLE SHAFT; Flange Diameter: 0.7500 INCHES NOMINAL IN; Undercut Width: 0.0570 INCHES MINIMUM 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 5990-00-603-9286 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.