The Motor-Tachometer Generator, cataloged under National Stock Number 6105-00-950-0747, is classified within Federal Supply Class 6105 (Motors, Electrical) of the Electric Wire, Power, and Distribution Equipment group. The manufacturer of record is Instruments and Flight Research, Inc.. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6105-00-950-0747 |
| Primary Part Number | 525791-20 |
| Item Name | Motor-Tachometer Generator |
| FSC / FSG | 6105 / 61 — Motors, Electrical |
| Manufacturer | Instruments and Flight Research, Inc. |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 THREADED HOLE(S) |
| Phase | SINGLE INPUT |
| Shaft Diameter | 0.1770 INCHES NOMINAL SINGLE END IN |
| Frequency in Hertz | 400.0 OUTPUT |
| Current Type | AC INPUT |
| Calibration Speed in RPM | 1000.0 |
| Mounting Method | END BELL |
| Spline Length | 0.3970 INCHES NOMINAL SINGLE END IN |
| Cooling Method | NONVENTILATED |
| Features Provided | VERTICAL MOUNTING POSITION AND HORIZONTAL MOUNTING POSITION |
| Mounting Facility Circle Diameter | 1.100 INCHES IN |
| Spline Quantity | 15 SINGLE END |
| Connection Type and Voltage Rating in Volts | 115.0 LINE TO NEUTRAL SINGLE INPUT |
| Calibration Voltage Output Type in Volts | 3.2 AC |
| Torque Rating and Type | 1.45 INCH-OUNCES STALLED IN |
| Length of Shaft From Housing | 0.397 INCHES SINGLE END IN |
| Enclosure Feature | TOTALLY ENCLOSED |
| Shaft End Characteristic | A14 SINGLE STYLE SINGLE END |
| Excitor Type | SEPARATELY EXCITED |
| Rotor Speed Rating in RPM | 4500.0 SINGLE NO LOAD |
| Temp Rating | -55.0 OPERATING CELSIUS AND 125.0 OPERATING CELSIUS |
| Inclosure Specification | COMMERCIAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 525791-20 | Instruments and Flight Research, Inc. (USA) |
| 15G4KAB1A0 | General Dynamics Motion Control Llc (USA) |
| Reference | Meaning |
|---|---|
| 15G4AAC1B1 | 5/9 Secondary reference Vernitron Corp |
| 15G4KAB1A0 | 3/9 Design control — primary reference Vernitron Corp |
NSN 6105-00-950-0747 is a Motor-Tachometer Generator, manufactured by Instruments and Flight Research, Inc., classified under FSC 6105, Motors, Electrical. Status: active.
NSN 6105-00-950-0747 has 2 manufacturer part numbers on file: 525791-20 (Instruments and Flight Research, Inc.), 15G4KAB1A0 (General Dynamics Motion Control Llc).
Key specifications for 525791-20: Mounting Facility Type and Quantity: 4 THREADED HOLE(S); Phase: SINGLE INPUT; Shaft Diameter: 0.1770 INCHES NOMINAL SINGLE END IN; Frequency in Hertz: 400.0 OUTPUT. 22 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.