The Synchro,control Transformer, cataloged under National Stock Number 5990-00-902-3882, 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 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5990-00-902-3882 |
| Primary Part Number | 136790-02 |
| 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 | 0.7450 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 |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | STANDARD ROUND A |
| Flange Thickness | 0.0620 INCHES NOMINAL IN |
| Stator Input Current Rating | 40.0 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 | 100.0 MILLIWATTS NOMINAL |
| Plus J Zso Reactance in Ohms | 350.00 NOMINAL |
| Zrs Resistance in Ohms | 548.00 NOMINAL |
| Terminal Location | REAR |
| Shaft Length | 0.5000 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 |
| Shaft Slot Width | 0.0200 INCHES NOMINAL SINGLE SHAFT IN |
| Plus J Zro Reactance in Ohms | 887.00 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 | 3.00 CENTIMETER-GRAMS NOMINAL CM |
| Actuator Friction Torque at Minus 55 Deg Celsius | 6.00 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 |
| Part Number | Manufacturer |
|---|---|
| 136790-02 PRIMARY | Ge Aviation Systems Llc (USA) |
| 45-4277-06-02 | Meggitt (new Hampshire), Inc (USA) |
| 08CT-0125-G | Cda Intercorp Llc (USA) |
| Reference | Meaning |
|---|---|
| 4277-06-02 | 5/9 Secondary reference U.S. Government activity |
| HTC-8-BA-4/L830 | 5/2 Secondary reference U.S. Government activity |
| 136790-2 | 5/9 Secondary reference Ge Aviation Systems Llc |
NSN 5990-00-902-3882 is a Synchro,control Transformer, manufactured by Ge Aviation Systems Llc, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-00-902-3882 has 3 manufacturer part numbers on file: 136790-02 (Ge Aviation Systems Llc), 45-4277-06-02 (Meggitt (new Hampshire), Inc), 08CT-0125-G (Cda Intercorp Llc).
Key specifications for 136790-02: 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.