The Tachometer,mechanical,fixed Moun, cataloged under National Stock Number 6680-01-025-1693, 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. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-01-025-1693 |
| Item Name | Tachometer,mechanical,fixed Moun |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Status | ACTIVE |
| Scale Quantity | 1 |
| Major Graduation Color | WHITE |
| Overall Diameter | 3.310 INCHES NOMINAL IN |
| Dial Illumination | NOT PROVIDED |
| Scale Smallest Increment | 100.0 REVOLUTIONS PER MINUTE |
| Dial Quantity | 1 |
| Totalizing Mechanism | PROVIDED |
| Scale Measurement Unit | REVOLUTIONS PER MINUTE |
| Pointer Quantity | 1 |
| Pointer Movement Direction | CLOCKWISE |
| Mounting Feature Type | FLUSH |
| Graduation Unit | 9999.99 HOUR |
| Pointer Color | BLACK AND WHITE |
| Case Shape | ROUND |
| Scale Measurement Range | +0.0 TO 3500.0 |
| Ahead-Astern Semaphore | NOT PROVIDED |
| Dial Background Color | BLACK |
| Mounting Type | PANEL |
| Operating Range | +0.0 TO 3500.0 REVOLUTIONS PER MINUTE |
| Totalizing Mechanism Calibration | ENGINE HOURS |
| 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 |
|---|---|
| 1548717 | 3/9 Design control — primary reference General Motors Llc Dba General Motors |
| 1548717 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
NSN 6680-01-025-1693 is a Tachometer,mechanical,fixed Moun, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
Key specifications for 6680-01-025-1693: Scale Quantity: 1; Major Graduation Color: WHITE; Overall Diameter: 3.310 INCHES NOMINAL IN; Dial Illumination: NOT PROVIDED. 20 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.