The Generator,tachometer, cataloged under National Stock Number 6680-00-490-9833, is classified within Federal Supply Class 6680 (Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is General Electric Co Direct Current Motor and Generator Dept. Government technical data includes 10 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-00-490-9833 |
| Primary Part Number | 5BC46AB1420 |
| Item Name | Generator,tachometer |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | General Electric Co Direct Current Motor and Generator Dept |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 SLOT |
| Electrical Resistance | 78.0 OHMS |
| Accuracy Range in Percent | -2.0 TO 2.0 |
| Features Provided | HORIZONTAL MOUNTING POSITION AND VERTICAL MOUNTING POSITION |
| Connection Type and Voltage Rating in Volts | UNABLE TO DECODE |
| Nominal Center to Center Distance Between Mounting Facilities Parallel to Length | 4.875 INCHES IN |
| Nominal Center to Center Distance Between Mounting Facilities Parallel to Width | 3.000 INCHES IN |
| Excitor Type | SELF-EXCITED |
| Terminal Type and Quantity | 3 WIRE LEAD |
| Rotor Speed Rating in RPM | 1760.0 SINGLE FULL LOAD |
| 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 |
|---|---|
| 5BC46AB1420 PRIMARY | General Electric Co Direct Current Motor and Generator Dept (USA) |
NSN 6680-00-490-9833 is a Generator,tachometer, manufactured by General Electric Co Direct Current Motor and Generator Dept, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-00-490-9833 has 1 manufacturer part number on file: 5BC46AB1420 (General Electric Co Direct Current Motor and Generator Dept).
Key specifications for 5BC46AB1420: Mounting Facility Type and Quantity: 4 SLOT; Electrical Resistance: 78.0 OHMS; Overall Length: 14.813 INCHES IN; Accuracy Range in Percent: -2.0 TO 2.0. 10 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.