The Counter,rotating, cataloged under National Stock Number 6680-00-428-9155, 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 The Dewey Electronics Corporation. Government technical data includes 11 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 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 | 6680-00-428-9155 |
| Primary Part Number | 40712-2 |
| Item Name | Counter,rotating |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | The Dewey Electronics Corporation |
| Status | ACTIVE |
| Register Quantity | 2 |
| Mounting Facility Type and Quantity | 4 THREADED HOLE(S) |
| Mounting Arrangement Style | FOUR POSITION SQUARE/RECTANGLE |
| Shaft Diameter | 0.155 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN |
| Figure Quantity Per Register | UNABLE TO DECODE |
| Longest Vertical Distance Between Mounting Centers | 0.750 INCHES NOMINAL IN |
| Actuating Device Location | RIGHT SIDE ALL REGISTERS ALL TIERS |
| Figure Height | UNABLE TO DECODE |
| Shaft Length | 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN |
| Maximum Count Rate | UNABLE TO DECODE |
| Longest Horizontal Distance Between Mounting Centers | 1.250 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 40712-2 PRIMARY | The Dewey Electronics Corporation (USA) |
NSN 6680-00-428-9155 is a Counter,rotating, manufactured by The Dewey Electronics Corporation, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-00-428-9155 has 1 manufacturer part number on file: 40712-2 (The Dewey Electronics Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5950-00-702-9361. Verify interchangeability with system specifications before substitution.
Key specifications for 40712-2: Register Quantity: 2; Mounting Facility Type and Quantity: 4 THREADED HOLE(S); Overall Height: 1.233 INCHES MINIMUM AND 1.253 INCHES MAXIMUM IN; Mounting Arrangement Style: FOUR POSITION SQUARE/RECTANGLE. 11 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.
NSN 6680-00-428-9155 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.