The Generator,tachometer, cataloged under National Stock Number 6680-01-171-9657, 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 Vdo-Yazaki Corp. Government technical data includes 9 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. 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 | 6680-01-171-9657 |
| Primary Part Number | 1511001050 |
| Item Name | Generator,tachometer |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Vdo-Yazaki Corp |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 THREADED STUD(S) |
| Electrical Resistance | 45.0 OHMS |
| Calibration Speed in RPM | 1000.0 |
| Mounting Method | SWIVEL NUT COUPLING |
| Accuracy Range in Percent | +0.0 TO 1.0 |
| Features Provided | HORIZONTAL MOUNTING POSITION |
| Calibration Voltage Output Type in Volts | 10.0 DC |
| Terminal Type and Quantity | 2 BINDING POST AND 1 SCREW |
| Rotor Speed Rating in RPM | 3000.0 HIGH 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 |
|---|---|
| 54696 | Terex Reedrill Dba Reedrill Texoma Div Terex Mining (USA) |
| 1511001050 PRIMARY | Vdo-Yazaki Corp (USA) |
NSN 6680-01-171-9657 is a Generator,tachometer, manufactured by Vdo-Yazaki Corp, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-171-9657 has 2 manufacturer part numbers on file: 54696 (Terex Reedrill Dba Reedrill Texoma Div Terex Mining), 1511001050 (Vdo-Yazaki Corp).
1 possible match (shared part number, not a government interchangeability claim): 9905-01-535-6345. Verify interchangeability with system specifications before substitution.
Key specifications for 1511001050: Mounting Facility Type and Quantity: 1 THREADED STUD(S); Electrical Resistance: 45.0 OHMS; Overall Length: 3.150 INCHES IN; Calibration Speed in RPM: 1000.0. 9 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.