The Synchro,control Transformer, cataloged under National Stock Number 5990-00-778-3675, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is General Dynamics Motion Control 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-00-778-3675 |
| Primary Part Number | VCT23/36-4B |
| Item Name | Synchro,control Transformer |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | General Dynamics Motion Control Llc |
| Status | ACTIVE |
| Body Size | 23 |
| Shaft Type | SPLINE W/THREADS SINGLE SHAFT |
| Body Diameter | 1.9850 INCHES MINIMUM AND 1.9900 INCHES MAXIMUM IN |
| Flange Diameter | 2.2490 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM IN |
| Shaft Diameter | 0.2500 INCHES NOMINAL SINGLE SHAFT IN |
| Length | 0.2470 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM SHOULDER IN |
| Body Style | STANDARD ROUND D |
| Flange Thickness | 0.2500 INCHES NOMINAL IN |
| Stator Input Current Rating | 7.0 MILLIAMPERES NOMINAL |
| Spline Tooth Quantity | 22 SINGLE SHAFT |
| Shaft Thread Length | 0.2670 INCHES NOMINAL SINGLE SHAFT IN |
| Aft of First Flange Diameter | 1.9985 INCHES MINIMUM AND 1.9995 INCHES MAXIMUM IN |
| Mounting Surface to Terminal End Distance | 3.4300 INCHES MINIMUM AND 3.4430 INCHES MAXIMUM IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Stator Input Electrical Power Rating | 80.0 MILLIWATTS NOMINAL |
| Terminal Location | REAR |
| Shaft Length | 0.6930 INCHES MINIMUM AND 0.7190 INCHES MAXIMUM SINGLE SHAFT IN |
| Pilot Diameter | 0.5900 INCHES MINIMUM AND 0.6000 INCHES MAXIMUM IN |
| Spline Tooth Diametral Pitch | 96 SINGLE SHAFT |
| Second Shoulder Length | 0.1700 INCHES NOMINAL IN |
| Shoulder Diameter | 1.9850 INCHES MINIMUM AND 1.9900 INCHES MAXIMUM IN |
| Shaft Nominal Thread Size | 0.240 INCHES SINGLE SHAFT IN |
| Stator Input Voltage Rating in Volts | 115.0 NOMINAL |
| Maximum Total Null Voltage Output in Millivolts Per Volt | 60.00 |
| Transformation Ratio | 0.735 ROTOR TO STATOR NOMINAL |
| Shaft Thread Direction | RIGHT-HAND SINGLE SHAFT |
| Pilot Length | 0.0460 INCHES NOMINAL IN |
| Shaft Thread Series Designator | UNF SINGLE SHAFT |
| Material | ALUMINUM BODY |
| 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 |
|---|---|
| VCT23/36-4B | General Dynamics Motion Control Llc (USA) |
| Reference | Meaning |
|---|---|
| 113A2B | 5/2 Secondary reference U.S. Government activity |
| AY2401C2D2 | 3/2 Design control — primary reference U.S. Government activity |
| VCT23364B | 5/9 Secondary reference General Dynamics Motion Control Llc |
| 113A2B | 5/1 Secondary reference U.S. Government activity |
| AY240BA2A1 | 5/2 Secondary reference U.S. Government activity |
| AY240BA2A1 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems |
| AY2401C2D2 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems |
NSN 5990-00-778-3675 is a Synchro,control Transformer, manufactured by General Dynamics Motion Control Llc, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-00-778-3675 has 1 manufacturer part number on file: VCT23/36-4B (General Dynamics Motion Control Llc).
Key specifications for VCT23/36-4B: Body Size: 23; Shaft Type: SPLINE W/THREADS SINGLE SHAFT; Body Diameter: 1.9850 INCHES MINIMUM AND 1.9900 INCHES MAXIMUM IN; Flange Diameter: 2.2490 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM 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.