The Adapter,speedometer-Tachometer D, cataloged under National Stock Number 6680-01-183-6671, 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 Department of Defense Project Manager-Mobile Electric Power. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6680-01-183-6671 |
| Primary Part Number | 80-7963 |
| Item Name | Adapter,speedometer-Tachometer D |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Department of Defense Project Manager-Mobile Electric Power |
| Status | ACTIVE |
| 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 |
|---|---|
| 80-7963 PRIMARY | Department of Defense Project Manager-Mobile Electric Power (USA) |
| Reference | Meaning |
|---|---|
| C18101-PTD | 5/9 Secondary reference Perts Tachographs Diversified Inc |
NSN 6680-01-183-6671 is a Adapter,speedometer-Tachometer D, manufactured by Department of Defense Project Manager-Mobile Electric Power, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-183-6671 has 1 manufacturer part number on file: 80-7963 (Department of Defense Project Manager-Mobile Electric Power).
1 possible match (shared part number, not a government interchangeability claim): 5999-01-369-3873. Verify interchangeability with system specifications before substitution.
Key specifications for 80-7963: Special Features: L SHAPED;DRIVE RATIO 1 TO 1;2.620 IN. W;1.880 IN. H;LONGEST SIDE LGTH 3.440 IN.;MATL:ADAPTER CASE AND FITTINGS-ALUM.,GEARS AND DRIVE CONNECTIONS-STEEL;0.875-18 UNS-2A THDS BOTH ENDS;TEMP RANGE -30 TO 125 DEG F A; End Item Identification: GENERATOR SET,750KW,50/60HZ. 0 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.