The Resolver,electrical, cataloged under National Stock Number 5990-00-644-3362, 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29 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-00-644-3362 |
| Item Name | Resolver,electrical |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Status | ACTIVE |
| Body Size | 23 |
| Shaft Type | ROUND, THREADED SINGLE SHAFT |
| Body Diameter | 1.9840 INCHES NOMINAL IN |
| Flange Diameter | 2.2490 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM IN |
| Shaft Diameter | 0.2402 INCHES MINIMUM AND 0.2405 INCHES MAXIMUM SINGLE SHAFT IN |
| Length | 0.1680 INCHES MINIMUM AND 0.1700 INCHES MAXIMUM SHOULDER IN |
| Body Style | STANDARD ROUND D |
| Flange Thickness | 0.2480 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN |
| Stator Input Current Rating | 23.0 MILLIAMPERES NOMINAL |
| Shaft Thread Length | 0.2800 INCHES MINIMUM AND 0.3100 INCHES MAXIMUM SINGLE SHAFT IN |
| Aft of First Flange Diameter | 1.9940 INCHES MINIMUM AND 1.9950 INCHES MAXIMUM IN |
| Phase Shift Angle in Deg | 0.900 INPUT TO OUTPUT NOMINAL |
| Mounting Surface to Terminal End Distance | 4.0240 INCHES MINIMUM AND 4.0800 INCHES MAXIMUM IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Stator Input Electrical Power Rating | 100.0 MILLIWATTS NOMINAL |
| Terminal Location | REAR |
| Alignment Hole Quantity | 4 |
| Shaft Length | 0.6930 INCHES MINIMUM AND 0.7190 INCHES MAXIMUM SINGLE SHAFT IN |
| Pilot Diameter | 0.5900 INCHES MINIMUM AND 0.6000 INCHES MAXIMUM IN |
| Second Shoulder Length | 0.1680 INCHES MINIMUM AND 0.1700 INCHES MAXIMUM IN |
| Maximum Fundamental Null Voltage in Millivolts Per Volt | 20.00 OUTPUT |
| Shoulder Diameter | 1.9850 INCHES MINIMUM AND 1.9950 INCHES MAXIMUM IN |
| Shaft Nominal Thread Size | 0.250 INCHES SINGLE SHAFT IN |
| Stator Input Voltage Rating in Volts | 90.0 NOMINAL |
| Maximum Total Null Voltage Output in Millivolts Per Volt | 30.00 |
| Transformation Ratio | 1.000 ROTOR TO STATOR NOMINAL |
| Shaft Thread Direction | RIGHT-HAND SINGLE SHAFT |
| Pilot Length | 0.0310 INCHES MINIMUM AND 0.0430 INCHES MAXIMUM IN |
| Shaft Thread Series Designator | UNF SINGLE SHAFT |
| 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 |
|---|---|
| 23RS4C | 5/1 Secondary reference U.S. Government activity |
| 9144188 | 5/1 Secondary reference Us Army Aviation and Missile Command |
| MIL-R-14346 | 4/1 Identification reference U.S. Government activity |
| 23R32N4 | 2/2 Government specification standardization U.S. Government activity |
| G231365 | 5/9 Secondary reference At and T Corp |
| MS51079-3 | 5/1 Secondary reference U.S. Government activity |
| 7659446 | 5/1 Secondary reference Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
NSN 5990-00-644-3362 is a Resolver,electrical, classified under FSC 5990, Synchros and Resolvers. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5990-00-763-4117, 5990-00-843-6761. Verify interchangeability with system specifications before substitution.
Key specifications for 5990-00-644-3362: Body Size: 23; Shaft Type: ROUND, THREADED SINGLE SHAFT; Body Diameter: 1.9840 INCHES NOMINAL IN; Flange Diameter: 2.2490 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM 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.