The Tachometer,mechanical,fixed Moun, cataloged under National Stock Number 6680-01-019-4906, 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 12 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-01-019-4906 |
| 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 |
| Scale Smallest Increment | 100.0 REVOLUTIONS PER SECOND |
| Dial Quantity | 1 |
| Scale Measurement Unit | REVOLUTIONS PER MINUTE |
| Pointer Quantity | 1 |
| Pointer Movement Direction | CLOCKWISE |
| Mounting Feature Type | FLUSH |
| Case Shape | ROUND |
| Scale Measurement Range | +0.0 TO 3500.0 |
| Ahead-Astern Semaphore | NOT PROVIDED |
| Mounting Type | PANEL |
| Operating Range | +0.0 TO 3500.0 REVOLUTIONS PER MINUTE |
| 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 |
|---|---|
| 387270C91 | 5/9 Secondary reference U.S. Government activity |
| 551YY | 5/9 Secondary reference Stewart-Warner Corporation |
| 366896-C1 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
| 386859C1 | 5/9 Secondary reference U.S. Government activity |
| 366896C1 | 3/2 Design control — primary reference U.S. Government activity |
| 386859C1 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
| 387270C91 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
NSN 6680-01-019-4906 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 6680-01-019-4906: Scale Quantity: 1; Scale Smallest Increment: 100.0 REVOLUTIONS PER SECOND; Dial Quantity: 1; Scale Measurement Unit: REVOLUTIONS PER MINUTE. 12 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.