The Indicator,electrical Tachometer, cataloged under National Stock Number 6680-01-335-8334, 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 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-01-335-8334 |
| Primary Part Number | 4A43N |
| 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 |
| Mounting Arrangement Style | FOUR HOLE/STUD RECTANGULAR/SQUARE |
| Length | 6.500 INCHES NOMINAL IN |
| AC Voltage Rating | 115.0 VOLTS NOMINAL |
| Current Type | AC |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 5.876 INCHES NOMINAL IN |
| Scale Range | +0.1 TO 200.0 PROPELLER REVOLUTIONS PER MINUTE SINGLE INDICATOR SINGLE SCALE |
| Pointer Type | INDICATING SINGLE POINTER |
| Presentation Type | DIAL |
| Height | 6.500 INCHES NOMINAL IN |
| Frequency Rating | 60.0 HERTZ NOMINAL |
| Width | 6.312 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 5.876 INCHES NOMINAL IN |
| Pointer Finish | NONLUMINOUS SINGLE POINTER |
| Material | ALUMINUM CASE |
| 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 |
|---|---|
| 4A43N | Dynalec Corporation (USA) |
| Reference | Meaning |
|---|---|
| PR4414-1 | 5/9 Secondary reference The Electric Tachometer Corp. |
| 4A43N | 3/9 Design control — primary reference The Electric Tachometer Corp. |
NSN 6680-01-335-8334 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 6680-01-335-8334 has 1 manufacturer part number on file: 4A43N (Dynalec Corporation).
Key specifications for 4A43N: Mounting Arrangement Style: FOUR HOLE/STUD RECTANGULAR/SQUARE; Length: 6.500 INCHES NOMINAL IN; AC Voltage Rating: 115.0 VOLTS NOMINAL; Current Type: AC. 14 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.