The Indicator,electrical Tachometer, cataloged under National Stock Number 6620-01-412-5514, is classified within Federal Supply Class 6620 (Engine Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Dynalec Corporation. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6620-01-412-5514 |
| Primary Part Number | 4PD3N |
| Item Name | Indicator,electrical Tachometer |
| FSC / FSG | 6620 / 66 — Engine Instruments |
| Manufacturer | Dynalec Corporation |
| Status | ACTIVE |
| Display Digit Quantity | 3 |
| Presentation Type | DIGITAL DISPLAY |
| Material | ALUMINUM CASE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| IC/1PR(MOD)4PD3N | Dynalec Corporation (USA) |
| 4PD3N PRIMARY | Dynalec Corporation (USA) |
| Reference | Meaning |
|---|---|
| IC/1PR(MOD)4PD3N | 5/9 Secondary reference The Electric Tachometer Corp. |
NSN 6620-01-412-5514 is a Indicator,electrical Tachometer, manufactured by Dynalec Corporation, classified under FSC 6620, Engine Instruments. Status: active.
NSN 6620-01-412-5514 has 2 manufacturer part numbers on file: IC/1PR(MOD)4PD3N (Dynalec Corporation), 4PD3N (Dynalec Corporation).
Key specifications for 4PD3N: Display Digit Quantity: 3; Presentation Type: DIGITAL DISPLAY; Material: ALUMINUM CASE. 3 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.
NSN 6620-01-412-5514 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.