The Generator,tachometer, cataloged under National Stock Number 6680-00-868-9840, 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 General Electric Co Direct Current Motor and Generator Dept. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-00-868-9840 |
| Primary Part Number | 5ASB55YJ4 |
| Item Name | Generator,tachometer |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | General Electric Co Direct Current Motor and Generator Dept |
| Status | ACTIVE |
| Mounting Method | FLANGE |
| Supplementary Features | ELECTRIC POWER GENERATION SYSTEM |
| 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 |
|---|---|
| 5ASB55YJ4 PRIMARY | General Electric Co Direct Current Motor and Generator Dept (USA) |
| Reference | Meaning |
|---|---|
| 5ASB55Y | 3/1 Design control — primary reference General Electric Co Direct Current Motor and Generator Dept |
NSN 6680-00-868-9840 is a Generator,tachometer, manufactured by General Electric Co Direct Current Motor and Generator Dept, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-00-868-9840 has 1 manufacturer part number on file: 5ASB55YJ4 (General Electric Co Direct Current Motor and Generator Dept).
Key specifications for 5ASB55YJ4: Mounting Method: FLANGE; Supplementary Features: ELECTRIC POWER GENERATION SYSTEM. 2 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.