The Synchro,differential Transmitter, cataloged under National Stock Number 5990-00-504-6697, 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28 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-00-504-6697 |
| Item Name | Synchro,differential Transmitter |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Status | ACTIVE |
| Body Size | 15 |
| Shaft Type | ROUND, SLOTTED SINGLE SHAFT |
| Flange Diameter | 1.4360 INCHES MINIMUM AND 1.4370 INCHES MAXIMUM IN |
| Undercut Width | 0.0780 INCHES NOMINAL IN |
| Shaft Diameter | 0.1195 INCHES MINIMUM AND 0.1200 INCHES MAXIMUM SINGLE SHAFT IN |
| Rotor DC Resistance in Ohms | 14.00 NOMINAL |
| Undercut Diameter | 0.1312 INCHES NOMINAL IN |
| Length | 0.1320 INCHES NOMINAL SHOULDER IN |
| Body Style | STANDARD ROUND C |
| Flange Thickness | 0.0930 INCHES NOMINAL IN |
| Alignment Hole Bolt Circle Diameter | 0.8750 INCHES NOMINAL IN |
| Mounting Surface to Terminal End Distance | 1.5910 INCHES NOMINAL IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Terminal Location | REAR |
| Alignment Hole Quantity | 4 |
| Shaft Length | 0.5400 INCHES NOMINAL SINGLE SHAFT IN |
| Pilot Diameter | 0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN |
| Shoulder Diameter | 1.3115 INCHES MINIMUM AND 1.3120 INCHES MAXIMUM IN |
| Stator Input Voltage Rating in Volts | 26.0 NOMINAL |
| Alignment Hole Depth | 0.1250 INCHES NOMINAL IN |
| Shaft Slot Width | 0.0210 INCHES MINIMUM AND 0.0310 INCHES MAXIMUM SINGLE SHAFT IN |
| Pilot Length | 0.0400 INCHES NOMINAL IN |
| Electrical Error Angular Range in Minutes | -12.0 TO 12.0 |
| Actuator Friction Torque at Plus 25 Deg Celsius | 7.0 CENTIMETER-GRAMS NOMINAL CM |
| Actuator Friction Torque at Minus 55 Deg Celsius | 15.0 CENTIMETER-GRAMS NOMINAL CM |
| Terminal Type and Quantity | 6 WIRE LEAD |
| Stator DC Resistance in Ohms | 10.80 NOMINAL |
| Shaft Slot Depth | 0.0210 INCHES MINIMUM AND 0.0310 INCHES MAXIMUM SINGLE SHAFT 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 |
|---|---|
| AY231A3B | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems |
| AY231A3B | 3/2 Design control — primary reference U.S. Government activity |
NSN 5990-00-504-6697 is a Synchro,differential Transmitter, classified under FSC 5990, Synchros and Resolvers. Status: active.
Key specifications for 5990-00-504-6697: Body Size: 15; Shaft Type: ROUND, SLOTTED SINGLE SHAFT; Flange Diameter: 1.4360 INCHES MINIMUM AND 1.4370 INCHES MAXIMUM IN; Undercut Width: 0.0780 INCHES NOMINAL 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.
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.