The Synchro,differential Transmitter, cataloged under National Stock Number 5990-00-644-0107, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. Government technical data includes 28 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-00-644-0107 |
| Item Name | Synchro,differential Transmitter |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Status | ACTIVE |
| Body Size | 31 |
| Shaft Type | SPLINE W/THREADS SINGLE SHAFT |
| Body Diameter | 2.7000 INCHES NOMINAL IN |
| Flange Diameter | 3.0980 INCHES MINIMUM AND 3.1000 INCHES MAXIMUM IN |
| Shaft Diameter | 0.2405 INCHES NOMINAL SINGLE SHAFT IN |
| Length | 1.0000 INCHES NOMINAL SHOULDER IN |
| Body Style | STANDARD ROUND, ROTATABLE HOUSING |
| Flange Thickness | 0.2470 INCHES MINIMUM AND 0.2530 INCHES MAXIMUM IN |
| Shaft Maximum Runout | 0.0005 INCHES IN |
| Stator Input Current Rating | 605.0 MILLIAMPERES NOMINAL |
| Spline Tooth Quantity | 22 SINGLE SHAFT |
| Shaft Thread Length | 0.2670 INCHES NOMINAL SINGLE SHAFT IN |
| Mounting Surface to Terminal End Distance | 3.3800 INCHES NOMINAL IN |
| Frequency in Hertz | 60.0 NOMINAL |
| Stator Input Electrical Power Rating | 13.2 WATTS NOMINAL |
| Terminal Location | REAR |
| Schematic Diagram Designator | 1 Y-ROTOR, 1 Y-STATOR |
| Shaft Length | 0.6810 INCHES MINIMUM AND 0.7060 INCHES MAXIMUM SINGLE SHAFT IN |
| Body Material | ALUMINUM |
| Spline Tooth Diametral Pitch | 96 SINGLE SHAFT |
| Shoulder Diameter | 2.7000 INCHES NOMINAL IN |
| Shaft Nominal Thread Size | 0.250 INCHES SINGLE SHAFT IN |
| Stator Input Voltage Rating in Volts | 91.8 MAXIMUM |
| Shaft Thread Direction | RIGHT-HAND SINGLE SHAFT |
| Shaft Thread Series Designator | UNF SINGLE SHAFT |
| Terminal Type and Quantity | 5 SCREW |
| Shaft Thread Class | 3A SINGLE SHAFT A |
| Shaft End Play | 0.0040 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 0S3883 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5990-00-644-0107 is a Synchro,differential Transmitter, classified under FSC 5990, Synchros and Resolvers. Status: active.
Key specifications for 5990-00-644-0107: Body Size: 31; Shaft Type: SPLINE W/THREADS SINGLE SHAFT; Body Diameter: 2.7000 INCHES NOMINAL IN; Flange Diameter: 3.0980 INCHES MINIMUM AND 3.1000 INCHES MAXIMUM IN. 28 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 5990-00-644-0107 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.