The Indicator,electrical Tachometer, cataloged under National Stock Number 6680-01-151-9164, 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 Dynalec Corporation. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-01-151-9164 |
| Primary Part Number | K4R1 |
| Item Name | Indicator,electrical Tachometer |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Dynalec Corporation |
| Status | ACTIVE |
| Current Type | AC |
| Mounting Stud Diameter | 0.334 INCHES NOMINAL IN |
| Scale Range | -0.1 TO 2000.0 REVOLUTIONS PER MINUTE SINGLE INDICATOR SINGLE SCALE |
| Pointer Type | CLOCK-HAND SINGLE POINTER |
| Presentation Type | ELECTRON TUBE |
| Height | 7.000 INCHES NOMINAL IN |
| Color | WHITE POINTER OVERALL |
| Depth | 7.500 INCHES NOMINAL IN |
| Width | 7.000 INCHES NOMINAL IN |
| 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 |
|---|---|
| K4R1 PRIMARY | Dynalec Corporation (USA) |
| Reference | Meaning |
|---|---|
| K4R1 | 5/9 Secondary reference The Electric Tachometer Corp. |
NSN 6680-01-151-9164 is a Indicator,electrical Tachometer, manufactured by Dynalec Corporation, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-151-9164 has 1 manufacturer part number on file: K4R1 (Dynalec Corporation).
Key specifications for K4R1: Current Type: AC; Mounting Stud Diameter: 0.334 INCHES NOMINAL IN; Scale Range: -0.1 TO 2000.0 REVOLUTIONS PER MINUTE SINGLE INDICATOR SINGLE SCALE; Pointer Type: CLOCK-HAND SINGLE POINTER. 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.