The Tachometer,mechanical,fixed Moun, cataloged under National Stock Number 6680-00-872-0779, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Stewart-Warner Corporation. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 6680-00-872-0779 |
| Primary Part Number | 551YK |
| Item Name | Tachometer,mechanical,fixed Moun |
| FSC / FSG | 6680 / 66 — No Item Name Available |
| Manufacturer | Stewart-Warner Corporation |
| Status | CANCELLED |
| Overall Diameter | 3.700 INCHES NOMINAL IN |
| Pointer Movement Direction | CLOCKWISE |
| Dial Quantity | 1 |
| Scale Measurement Range | +0.0 TO 25.0 |
| Operating Range | +0.0 TO 2500.0 REVOLUTIONS PER MINUTE |
| Pointer Color | WHITE |
| Dial Background Color | BLACK |
| Dial Illumination | NOT PROVIDED |
| Case Shape | ROUND |
| Scale Measurement Unit | REVOLUTIONS PER MINUTE |
| Ahead-Astern Semaphore | NOT PROVIDED |
| Graduation Unit | 1.0 HOUR |
| Minor Graduation Color | WHITE |
| Scale Smallest Increment | 0.5 REVOLUTIONS PER MINUTE |
| Scale Quantity | 1 |
| Totalizing Mechanism Calibration | ENGINE HOURS |
| Major Graduation Color | WHITE |
| Pointer Quantity | 1 |
| Totalizing Mechanism | PROVIDED |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 41479 | Drs Environmental Systems Inc (USA) |
| 567EA | Stewart-Warner Corporation (USA) |
| 41479 | Hdt Expeditionary Systems Inc (USA) |
| 41479 | Davey Compressor Co Div of Keco Industries Inc (USA) |
| 551 | Stewart-Warner Corporation (USA) |
| 551YK PRIMARY | Stewart-Warner Corporation (USA) |
NSN 6680-00-872-0779 is a Tachometer,mechanical,fixed Moun, manufactured by Stewart-Warner Corporation, classified under FSC 6680 (No Item Name Available). Status: cancelled.
NSN 6680-00-872-0779 has 6 cross-referenced part numbers: 41479 (Drs Environmental Systems Inc), 567EA (Stewart-Warner Corporation), 41479 (Hdt Expeditionary Systems Inc), 41479 (Davey Compressor Co Div of Keco Industries Inc), 551 (Stewart-Warner Corporation) and 1 more.
There are 6 known substitutes for 6680-00-872-0779: 4730-00-071-5167, 2520-00-383-9635, 6150-00-489-0314 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 551YK: Overall Diameter: 3.700 INCHES NOMINAL IN; Overall Depth: 3.440 INCHES NOMINAL IN; Pointer Movement Direction: CLOCKWISE; Dial Quantity: 1. 20 total characteristics are documented in the Federal Logistics Information System.
NSN 6680-00-872-0779 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.