The Resolver,electrical, cataloged under National Stock Number 5990-00-503-2908, 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29 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-00-503-2908 |
| Item Name | Resolver,electrical |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Status | ACTIVE |
| Body Size | 15 |
| Shaft Type | ROUND SINGLE SHAFT |
| Flange Diameter | 1.4360 INCHES MINIMUM AND 1.4370 INCHES MAXIMUM IN |
| Undercut Width | 0.0780 INCHES NOMINAL IN |
| Shaft Diameter | 0.1870 INCHES MINIMUM AND 0.1873 INCHES MAXIMUM SINGLE SHAFT IN |
| Rotor DC Resistance in Ohms | 250.00 NOMINAL |
| Undercut Diameter | 1.3120 INCHES NOMINAL IN |
| Length | 0.1320 INCHES NOMINAL SHOULDER IN |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | STANDARD ROUND C |
| Flange Thickness | 0.0930 INCHES NOMINAL IN |
| Alignment Hole Bolt Circle Diameter | 1.1000 INCHES NOMINAL IN |
| Phase Shift Angle in Deg | 6.000 INPUT TO OUTPUT MAXIMUM |
| Mounting Surface to Terminal End Distance | 1.9600 INCHES MAXIMUM IN |
| Frequency in Hertz | 500.0 NOMINAL |
| Zro Resistance in Ohms | 615.00 NOMINAL |
| Terminal Location | REAR |
| Alignment Hole Quantity | 4 |
| Shaft Length | 0.5700 INCHES NOMINAL SINGLE SHAFT IN |
| Pilot Diameter | 0.8745 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN |
| Shoulder Diameter | 1.3115 INCHES MINIMUM AND 1.3120 INCHES MAXIMUM IN |
| Stator Input Voltage Rating in Volts | 100.0 MAXIMUM |
| Maximum Total Null Voltage Output in Millivolts Per Volt | 1.50 |
| Alignment Hole Depth | 0.1250 INCHES NOMINAL IN |
| Plus J Zro Reactance in Ohms | 660.00 NOMINAL |
| Transformation Ratio | 0.980 ROTOR TO STATOR NOMINAL |
| Pilot Length | 0.0400 INCHES NOMINAL IN |
| Output Voltage Functional Error Range in Percent | -3.0 TO 3.0 |
| Electrical Error Angular Range in Minutes | -5.0 TO 5.0 |
| 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 |
|---|---|
| 1R15N5-308 | 5/9 Secondary reference Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc |
| R150-104 | 5/9 Secondary reference Lambda Novatronics Inc Delray Opns |
| 976052-1 | 7/2 Vendor item drawing reference U.S. Government activity |
| CZC-15-JS-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5990-00-503-2908 is a Resolver,electrical, classified under FSC 5990, Synchros and Resolvers. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5985-01-059-8508. Verify interchangeability with system specifications before substitution.
Key specifications for 5990-00-503-2908: Body Size: 15; Shaft Type: ROUND SINGLE SHAFT; Flange Diameter: 1.4360 INCHES MINIMUM AND 1.4370 INCHES MAXIMUM IN; Undercut Width: 0.0780 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.