The Resolver,electrical, cataloged under National Stock Number 5990-00-421-0244, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Kearfott Corp Div Kearfott Corporation. Government technical data includes 29 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5990-00-421-0244 |
| Primary Part Number | CM41084020 |
| Item Name | Resolver,electrical |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | Kearfott Corp Div Kearfott Corporation |
| Status | ACTIVE |
| Body Size | 8 |
| Shaft Type | ROUND, SLOTTED SINGLE SHAFT |
| Flange Diameter | 0.7470 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN |
| Undercut Width | 0.0620 INCHES NOMINAL IN |
| Shaft Diameter | 0.1200 INCHES NOMINAL SINGLE SHAFT IN |
| Rotor DC Resistance in Ohms | 220.00 NOMINAL |
| Undercut Diameter | 0.6880 INCHES MINIMUM AND 0.6910 INCHES MAXIMUM IN |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | STANDARD ROUND A |
| Flange Thickness | 0.0620 INCHES NOMINAL IN |
| Stator Input Current Rating | 440.0 MILLIAMPERES NOMINAL |
| Phase Shift Angle in Deg | 18.000 INPUT TO OUTPUT NOMINAL |
| Mounting Surface to Terminal End Distance | 1.2400 INCHES MAXIMUM IN |
| Frequency in Hertz | 400.0 NOMINAL |
| Zro Resistance in Ohms | 243.00 NOMINAL |
| Stator Input Electrical Power Rating | 464.0 MILLIWATTS NOMINAL |
| Plus J Zso Reactance in Ohms | 548.00 NOMINAL |
| Terminal Location | REAR |
| Compensation Method | WINDING COMPENSATED |
| Shaft Length | 0.6250 INCHES NOMINAL SINGLE SHAFT IN |
| Pilot Diameter | 0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN |
| Stator Input Voltage Rating in Volts | 26.0 NOMINAL |
| Maximum Total Null Voltage Output in Millivolts Per Volt | 32.00 |
| Shaft Slot Width | 0.0250 INCHES NOMINAL SINGLE SHAFT IN |
| Plus J Zro Reactance in Ohms | 596.00 NOMINAL |
| Transformation Ratio | 0.914 ROTOR TO STATOR NOMINAL |
| Compensator DC Resistance in Ohms | 200.00 NOMINAL |
| Pilot Length | 0.0400 INCHES NOMINAL IN |
| Zso Resistance in Ohms | 244.00 NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| CM41084020 PRIMARY | Kearfott Corp Div Kearfott Corporation (USA) |
| Reference | Meaning |
|---|---|
| G133-015-001 | 7/2 Vendor item drawing reference Bae Systems Information and Electronic Systems Integration Inc. |
| G133-015-001 | 5/9 Secondary reference U.S. Government activity |
NSN 5990-00-421-0244 is a Resolver,electrical, manufactured by Kearfott Corp Div Kearfott Corporation, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-00-421-0244 has 1 manufacturer part number on file: CM41084020 (Kearfott Corp Div Kearfott Corporation).
Key specifications for CM41084020: Body Size: 8; Shaft Type: ROUND, SLOTTED SINGLE SHAFT; Flange Diameter: 0.7470 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN; Undercut Width: 0.0620 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.