The Synchro,differential Transmitter, cataloged under National Stock Number 5990-00-977-9261, 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29 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-00-977-9261 |
| Item Name | Synchro,differential Transmitter |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Status | ACTIVE |
| Body Size | 11 |
| Shaft Type | ROUND, SLOTTED SINGLE SHAFT |
| Flange Diameter | 1.0620 INCHES NOMINAL IN |
| Undercut Width | 0.0810 INCHES NOMINAL IN |
| Shaft Diameter | 0.1200 INCHES NOMINAL SINGLE SHAFT IN |
| Rotor DC Resistance in Ohms | 10.80 NOMINAL |
| Length | 0.0620 INCHES NOMINAL SHOULDER IN |
| Body Style | STANDARD ROUND B |
| Flange Thickness | 0.0620 INCHES NOMINAL IN |
| Stator Input Current Rating | 138.0 MILLIAMPERES NOMINAL |
| Phase Shift Angle in Deg | 5.000 INPUT TO OUTPUT NOMINAL |
| Mounting Surface to Terminal End Distance | 1.6400 INCHES MAXIMUM IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Zro Resistance in Ohms | 14.00 NOMINAL |
| Stator Input Electrical Power Rating | 290.0 MILLIWATTS NOMINAL |
| Plus J Zso Reactance in Ohms | 72.00 NOMINAL |
| Terminal Location | REAR |
| Shaft Length | 0.3130 INCHES NOMINAL SINGLE SHAFT IN |
| Body Material | STEEL CORROSION RESISTING |
| Pilot Diameter | 0.5000 INCHES NOMINAL IN |
| Shoulder Diameter | 1.0000 INCHES NOMINAL IN |
| Stator Input Voltage Rating in Volts | 26.0 NOMINAL |
| Shaft Slot Width | 0.0320 INCHES NOMINAL SINGLE SHAFT IN |
| Plus J Zro Reactance in Ohms | 67.00 NOMINAL |
| Pilot Length | 0.0620 INCHES NOMINAL IN |
| Zso Resistance in Ohms | 15.00 NOMINAL |
| Actuator Friction Torque at Plus 25 Deg Celsius | 3.0 CENTIMETER-GRAMS NOMINAL CM |
| Actuator Friction Torque at Minus 55 Deg Celsius | 9.0 CENTIMETER-GRAMS NOMINAL CM |
| Terminal Type and Quantity | 6 WIRE LEAD |
| 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 |
|---|---|
| CDH11B2A003 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5990-00-977-9261 is a Synchro,differential Transmitter, classified under FSC 5990, Synchros and Resolvers. Status: active.
Key specifications for 5990-00-977-9261: Body Size: 11; Shaft Type: ROUND, SLOTTED SINGLE SHAFT; Flange Diameter: 1.0620 INCHES NOMINAL IN; Undercut Width: 0.0810 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.