The Adapter,speedometer-Tachometer D, cataloged under National Stock Number 6680-00-342-3392, 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Instruments) of the Instruments and Laboratory Equipment group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-00-342-3392 |
| Item Name | Adapter,speedometer-Tachometer D |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| 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 |
| Reference | Meaning |
|---|---|
| 777-D | 3/9 Design control — primary reference Stewart-Warner Corporation |
NSN 6680-00-342-3392 is a Adapter,speedometer-Tachometer D, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5985-00-914-0166, 4320-01-025-3828. Verify interchangeability with system specifications before substitution.
Key specifications for 6680-00-342-3392: Special Features: 4 GEARS,1 GASKET,1 DRIVEN SHAFT,1 CASE BUSHING AND NUT ASSY,1 CASE AND SLEEVE ASSY,1 SHAFT AND SPRING ASSY. 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.