The Resolver,electrical, cataloged under National Stock Number 5990-00-988-0897, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. Government technical data includes 25 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5990-00-988-0897 |
| Item Name | Resolver,electrical |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Status | ACTIVE |
| Body Size | 8 |
| Shaft Type | ROUND SINGLE SHAFT |
| Flange Diameter | 0.7490 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN |
| Undercut Width | 0.0620 INCHES NOMINAL IN |
| Shaft Diameter | 0.0900 INCHES MINIMUM AND 0.0945 INCHES MAXIMUM SINGLE SHAFT IN |
| Rotor DC Resistance in Ohms | 230.00 NOMINAL |
| Undercut Diameter | 0.6880 INCHES MINIMUM AND 0.6910 INCHES MAXIMUM IN |
| Body Style | STANDARD ROUND A |
| Flange Thickness | 0.0520 INCHES NOMINAL IN |
| Rotor Input Electrical Power Rating | 390.0 MILLIWATTS NOMINAL |
| Stator Input Current Rating | 80.0 MILLIAMPERES NOMINAL |
| Mounting Surface to Terminal End Distance | 1.2410 INCHES MAXIMUM IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Stator Input Electrical Power Rating | 250.0 MILLIWATTS NOMINAL |
| Terminal Location | REAR |
| Rotor Input Voltage Rating in Volts | 26.0 NOMINAL |
| Shaft Length | 0.4810 INCHES NOMINAL SINGLE SHAFT IN |
| Pilot Diameter | 0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN |
| Stator Input Voltage Rating in Volts | 11.8 NOMINAL |
| Transformation Ratio | 1.600 ROTOR TO STATOR NOMINAL |
| Pilot Length | 0.0430 INCHES NOMINAL IN |
| Actuator Friction Torque at Plus 25 Deg Celsius | 10.0 CENTIMETER-GRAMS NOMINAL CM |
| Rotor Input Current Rating | 38.0 MILLIAMPERES NOMINAL |
| Terminal Type and Quantity | 7 WIRE LEAD |
| Stator DC Resistance in Ohms | 27.00 NOMINAL |
| 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 |
|---|---|
| 229-6003-00 | 5/2 Secondary reference U.S. Government activity |
| CSH8E1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5990-00-988-0897 is a Resolver,electrical, classified under FSC 5990, Synchros and Resolvers. Status: active.
Key specifications for 5990-00-988-0897: Body Size: 8; Shaft Type: ROUND SINGLE SHAFT; Flange Diameter: 0.7490 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN; Undercut Width: 0.0620 INCHES NOMINAL IN. 25 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.