The Synchro,control Transformer, cataloged under National Stock Number 5990-00-705-4349, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. Government technical data includes 29 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-00-705-4349 |
| Item Name | Synchro,control Transformer |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Status | ACTIVE |
| Body Size | 12 |
| Shaft Type | ROUND FRONT SHAFT |
| Shaft Type | ROUND, HOLLOWED REAR SHAFT |
| Shaft Radial Play Test Point | 0.125 INCHES NOMINAL IN |
| Flange Diameter | 1.1880 INCHES NOMINAL IN |
| Undercut Width | 0.0500 INCHES NOMINAL IN |
| Shaft Diameter | 0.1200 INCHES NOMINAL FRONT SHAFT IN |
| Shaft Diameter | 0.1200 INCHES NOMINAL REAR SHAFT IN |
| Undercut Diameter | 0.9375 INCHES NOMINAL IN |
| Length | 0.0620 INCHES NOMINAL SHOULDER IN |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | STANDARD ROUND, ROTATABLE STATOR C |
| Shaft Radial Play Determining Weight | 4.0 OUNCES OZ |
| Shaft Hole Diameter | 0.0625 INCHES NOMINAL REAR SHAFT IN |
| Flange Thickness | 0.0930 INCHES NOMINAL IN |
| Shaft Maximum Runout | 0.0010 INCHES IN |
| Stator Input Current Rating | 86.0 MILLIAMPERES NOMINAL |
| Zro Impedance Angle in Deg | 78.00 NOMINAL |
| Phase Shift Angle in Deg | 5.200 INPUT TO OUTPUT NOMINAL |
| Mounting Surface to Terminal End Distance | 2.2410 INCHES MAXIMUM IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Stator Input Electrical Power Rating | 1.0 WATTS NOMINAL |
| Terminal Location | REAR |
| Shaft End Play Determining Weight | 16.0 OUNCES OZ |
| Shaft Maximum Radial Play | 0.0005 INCHES IN |
| Zso Impedance Angle in Deg | 75.00 NOMINAL |
| Shaft Length | 0.5860 INCHES NOMINAL FRONT SHAFT IN |
| Shaft Length | 0.7410 INCHES NOMINAL REAR SHAFT IN |
| Pilot Diameter | 0.6250 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| U991-001 | 3/2 Design control — primary reference U.S. Government activity |
| U991-001-0 | 5/2 Secondary reference U.S. Government activity |
NSN 5990-00-705-4349 is a Synchro,control Transformer, classified under FSC 5990, Synchros and Resolvers. Status: active.
Key specifications for 5990-00-705-4349: Body Size: 12; Shaft Type: ROUND FRONT SHAFT; Shaft Type: ROUND, HOLLOWED REAR SHAFT; Shaft Radial Play Test Point: 0.125 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.
NSN 5990-00-705-4349 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.