The Synchro,control Transformer, cataloged under National Stock Number 5990-01-204-4874, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 27 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-01-204-4874 |
| Primary Part Number | 5496144 |
| Item Name | Synchro,control Transformer |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Body Size | 18 |
| Flange Diameter | 1.7500 INCHES NOMINAL IN |
| Zss Impedance Magnitude in Ohms | 735.00 NOMINAL |
| Undercut Width | 0.0780 INCHES NOMINAL IN |
| Undercut Diameter | 1.6250 INCHES NOMINAL IN |
| Length | 0.1320 INCHES NOMINAL SHOULDER IN |
| Body Style | STANDARD ROUND C |
| Flange Thickness | 0.0930 INCHES NOMINAL IN |
| Stator Input Current Rating | 40.0 MILLIAMPERES NOMINAL |
| Zro Impedance Angle in Deg | 78.00 NOMINAL |
| Phase Shift Angle in Deg | 11.000 INPUT TO OUTPUT NOMINAL |
| Mounting Surface to Terminal End Distance | 2.3880 INCHES MAXIMUM IN |
| Frequency in Hertz | 60.0 NOMINAL |
| Stator Input Electrical Power Rating | 950.0 MILLIWATTS NOMINAL |
| Terminal Location | REAR |
| Pilot Diameter | 0.9375 INCHES NOMINAL IN |
| Maximum Fundamental Null Voltage in Millivolts Per Volt | 30.00 OUTPUT |
| Shoulder Diameter | 1.5620 INCHES NOMINAL IN |
| Stator Input Voltage Rating in Volts | 115.0 NOMINAL |
| Maximum Total Null Voltage Output in Millivolts Per Volt | 80.00 |
| Transformation Ratio | 0.783 ROTOR TO STATOR NOMINAL |
| Pilot Length | 0.0400 INCHES NOMINAL IN |
| Electrical Error Angular Range in Minutes | -4.0 TO 4.0 |
| Material | STEEL CORROSION RESISTING BODY |
| Terminal Type and Quantity | 5 SCREW |
| Zro Impedance Magnitude in Ohms | 3125.00 NOMINAL |
| Zss Impedance Angle in Deg | 11.00 NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5990-01-204-4874 is a Synchro,control Transformer, manufactured by Naval Sea Systems Command, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-01-204-4874 has 2 manufacturer part numbers on file: 5496144 (Raytheon Company), 5496144 (Naval Sea Systems Command).
Key specifications for 5496144: Body Size: 18; Flange Diameter: 1.7500 INCHES NOMINAL IN; Zss Impedance Magnitude in Ohms: 735.00 NOMINAL; Undercut Width: 0.0780 INCHES NOMINAL IN. 27 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 5990-01-204-4874 has DEMIL Code D. 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.