The Resolver,electrical, cataloged under National Stock Number 5990-00-647-2016, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Ward Leonard Ct Llc. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5990-00-647-2016 |
| Primary Part Number | 105-440-1 |
| Item Name | Resolver,electrical |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | Ward Leonard Ct Llc |
| Status | ACTIVE |
| Body Size | 23 |
| Shaft Type | ROUND, THREADED SINGLE SHAFT |
| Shaft Diameter | 0.2405 INCHES NOMINAL SINGLE SHAFT IN |
| Shaft Thread Length | 0.3100 INCHES NOMINAL SINGLE SHAFT IN |
| Phase Shift Angle in Deg | 1.300 INPUT TO OUTPUT NOMINAL |
| Frequency in Hertz | 400.0 NOMINAL |
| Terminal Location | REAR |
| Shaft Length | 0.6100 INCHES NOMINAL SINGLE SHAFT IN |
| Shaft Nominal Thread Size | 0.2500 INCHES SINGLE SHAFT IN |
| Stator Input Voltage Rating in Volts | 10.0 MINIMUM AND 90.0 MAXIMUM |
| Maximum Total Null Voltage Output in Millivolts Per Volt | 60.00 |
| Transformation Ratio | 1.027 ROTOR TO STATOR NOMINAL |
| Shaft Thread Direction | RIGHT-HAND SINGLE SHAFT |
| Shaft Thread Series Designator | UNF SINGLE SHAFT |
| Terminal Type and Quantity | 8 SCREW |
| Shaft Thread Class | 3A SINGLE SHAFT A |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 105-440-1 | Ward Leonard Ct Llc (USA) |
| Reference | Meaning |
|---|---|
| 23RS4A | 3/2 Design control — primary reference U.S. Government activity |
NSN 5990-00-647-2016 is a Resolver,electrical, manufactured by Ward Leonard Ct Llc, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-00-647-2016 has 1 manufacturer part number on file: 105-440-1 (Ward Leonard Ct Llc).
1 possible match (shared part number, not a government interchangeability claim): 5360-00-860-2913. Verify interchangeability with system specifications before substitution.
Key specifications for 105-440-1: Body Size: 23; Shaft Type: ROUND, THREADED SINGLE SHAFT; Shaft Diameter: 0.2405 INCHES NOMINAL SINGLE SHAFT IN; Shaft Thread Length: 0.3100 INCHES NOMINAL SINGLE SHAFT IN. 16 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 5990-00-647-2016 has DEMIL Code B. 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.