The Synchro,control Transformer, cataloged under National Stock Number 5990-00-810-1518, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-00-810-1518 |
| Primary Part Number | 124851-02 |
| Item Name | Synchro,control Transformer |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | Ge Aviation Systems Llc |
| Status | ACTIVE |
| Body Size | 12 |
| Shaft Type | ROUND BOTH SHAFTS |
| Shaft Radial Play Test Point | 0.125 INCHES MAXIMUM IN |
| Flange Diameter | 1.1850 INCHES MINIMUM AND 1.1910 INCHES MAXIMUM IN |
| Undercut Width | 0.0500 INCHES NOMINAL IN |
| Shaft Diameter | 0.1195 INCHES MINIMUM AND 0.1200 INCHES MAXIMUM FRONT SHAFT IN |
| Shaft Diameter | 0.0775 INCHES MINIMUM AND 0.7800 INCHES MAXIMUM REAR SHAFT IN |
| Rotor DC Resistance in Ohms | 385.00 NOMINAL |
| Undercut Diameter | 1.1050 INCHES MINIMUM AND 1.1130 INCHES MAXIMUM IN |
| Length | 0.0590 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM SHOULDER IN |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | STANDARD ROUND, ROTATABLE STATOR C |
| Shaft Radial Play Determining Weight | 4.0 OUNCES OZ |
| Flange Thickness | 0.0900 INCHES MINIMUM AND 0.0960 INCHES MAXIMUM IN |
| Shaft Maximum Runout | 0.0010 INCHES IN |
| Stator Input Current Rating | 21.0 MILLIAMPERES MAXIMUM |
| Phase Shift Angle in Deg | 4.200 OUTPUT TO INPUT NOMINAL |
| Mounting Surface to Terminal End Distance | 2.3110 INCHES MAXIMUM IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Zro Resistance in Ohms | 625.00 NOMINAL |
| Stator Input Electrical Power Rating | 50.0 MILLIWATTS MAXIMUM |
| Plus J Zso Reactance in Ohms | 570.00 NOMINAL |
| Zrs Resistance in Ohms | 570.00 NOMINAL |
| Terminal Location | REAR |
| Shaft End Play Determining Weight | 16.0 OUNCES OZ |
| Shaft Maximum Radial Play | 0.0050 INCHES IN |
| Shaft Length | 0.2740 INCHES MAXIMUM REAR SHAFT IN |
| Shaft Length | 0.3950 INCHES MAXIMUM FRONT SHAFT IN |
| Pilot Diameter | 0.6250 INCHES NOMINAL IN |
| 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 |
|---|---|
| 124851-02 | Ge Aviation Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| U904-001-D | 5/2 Secondary reference U.S. Government activity |
| 464090-2 | 5/2 Secondary reference U.S. Government activity |
| U904-001 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5990-00-810-1518 is a Synchro,control Transformer, manufactured by Ge Aviation Systems Llc, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-00-810-1518 has 1 manufacturer part number on file: 124851-02 (Ge Aviation Systems Llc).
1 possible match (shared part number, not a government interchangeability claim): 2510-01-512-0716. Verify interchangeability with system specifications before substitution.
Key specifications for 124851-02: Body Size: 12; Shaft Type: ROUND BOTH SHAFTS; Shaft Radial Play Test Point: 0.125 INCHES MAXIMUM IN; Flange Diameter: 1.1850 INCHES MINIMUM AND 1.1910 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.