The Tachometer,mechanical,fixed Moun, cataloged under National Stock Number 6680-00-403-5922, 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 Cnh Industrial America Llc Dba Cnh America. Government technical data includes 26 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-00-403-5922 |
| Primary Part Number | 84203106 |
| Item Name | Tachometer,mechanical,fixed Moun |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Cnh Industrial America Llc Dba Cnh America |
| Status | ACTIVE |
| Scale Quantity | 1 |
| Major Graduation Color | WHITE |
| Overall Diameter | 3.770 INCHES NOMINAL IN |
| Dial Illumination | NOT PROVIDED |
| Drive Connection Type | FLEXIBLE |
| Scale Smallest Increment | 50.0 REVOLUTIONS PER MINUTE |
| Shaft Rotation Direction | COUNTERCLOCKWISE |
| Dial Quantity | 1 |
| Totalizing Mechanism | PROVIDED |
| Scale Measurement Unit | REVOLUTIONS PER MINUTE AND REVOLUTIONS PER HOUR |
| Pointer Quantity | 1 |
| Pointer Movement Direction | CLOCKWISE |
| Mounting Feature Type | FLUSH |
| Graduation Unit | 50000.0 REVOLUTIONS PER MINUTE AND 1.0 HOURS OPERATED |
| Unit Type | MAGNETIC |
| Pointer Color | WHITE |
| Case Shape | ROUND |
| Scale Measurement Range | +0.0 TO 2500.0 |
| Ahead-Astern Semaphore | NOT PROVIDED |
| Unable to Decode | UNABLE TO DECODE |
| Material | STEEL CASE |
| Dial Background Color | BLACK |
| Mounting Type | PANEL |
| Operating Range | +0.0 TO 2500.0 REVOLUTIONS PER MINUTE |
| Minor Graduation Color | WHITE |
| Totalizing Mechanism Calibration | HOURS OPERATED |
| 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 |
|---|---|
| 84203106 PRIMARY | Cnh Industrial America Llc Dba Cnh America (USA) |
| Reference | Meaning |
|---|---|
| 551T2 | C/1 Advisory reference — outside the item-of-supply concept Stewart-Warner Corporation |
| A11190 | 5/9 Secondary reference Cnh Industrial America Llc Dba Cnh America |
| 551TZ | 5/9 Secondary reference Stewart-Warner Corporation |
NSN 6680-00-403-5922 is a Tachometer,mechanical,fixed Moun, manufactured by Cnh Industrial America Llc Dba Cnh America, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-00-403-5922 has 1 manufacturer part number on file: 84203106 (Cnh Industrial America Llc Dba Cnh America).
1 possible match (shared part number, not a government interchangeability claim): 6625-01-026-6015. Verify interchangeability with system specifications before substitution.
Key specifications for 84203106: Scale Quantity: 1; Major Graduation Color: WHITE; Overall Diameter: 3.770 INCHES NOMINAL IN; Dial Illumination: NOT PROVIDED. 26 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.