The Synchro,control Transformer, cataloged under National Stock Number 5990-00-078-7735, 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29 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5990-00-078-7735 |
| Item Name | Synchro,control Transformer |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Status | ACTIVE |
| Body Size | 8 |
| Shaft Type | ROUND, THREADED SINGLE SHAFT |
| Flange Diameter | 0.7490 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN |
| Undercut Width | 0.0620 INCHES NOMINAL IN |
| Shaft Diameter | 0.0930 INCHES NOMINAL SINGLE SHAFT IN |
| Undercut Diameter | 0.6880 INCHES MINIMUM AND 0.6910 INCHES MAXIMUM IN |
| Body Style | STANDARD ROUND A |
| Shaft Radial Play Determining Weight | 3.0 OUNCES OZ |
| Flange Thickness | 0.0610 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM IN |
| Shaft Maximum Runout | 0.0010 INCHES IN |
| Stator Input Current Rating | 450.0 MILLIAMPERES NOMINAL |
| Shaft Thread Length | 0.1870 INCHES NOMINAL SINGLE SHAFT IN |
| Mounting Surface to Terminal End Distance | 1.2410 INCHES MAXIMUM IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Stator Input Electrical Power Rating | 100.0 MILLIWATTS NOMINAL |
| Terminal Location | REAR |
| Shaft End Play Determining Weight | 3.0 OUNCES OZ |
| Shaft Maximum Radial Play | 0.0010 INCHES IN |
| Shaft Length | 0.1550 INCHES NOMINAL SINGLE SHAFT IN |
| Pilot Diameter | 0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN |
| Shaft Nominal Thread Size | 0.051 INCHES SINGLE SHAFT IN |
| Stator Input Voltage Rating in Volts | 26.0 NOMINAL |
| Transformation Ratio | 2.200 ROTOR TO STATOR NOMINAL |
| Shaft Thread Direction | RIGHT-HAND SINGLE SHAFT |
| Pilot Length | 0.0410 INCHES MINIMUM AND 0.0450 INCHES MAXIMUM IN |
| Shaft Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE SHAFT |
| Terminal Type and Quantity | 5 WIRE LEAD |
| Shaft Thread Class | 3B SINGLE SHAFT |
| Shaft End Play | 0.0002 INCHES MINIMUM AND 0.0012 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| AY307SB18C1 | 3/2 Design control — primary reference U.S. Government activity |
| AY307SB18C1 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems |
NSN 5990-00-078-7735 is a Synchro,control Transformer, classified under FSC 5990, Synchros and Resolvers. Status: active.
Key specifications for 5990-00-078-7735: Body Size: 8; Shaft Type: ROUND, THREADED SINGLE SHAFT; Flange Diameter: 0.7490 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.