The Counter,rotating, cataloged under National Stock Number 6680-00-989-4076, 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. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6680-00-989-4076 |
| Item Name | Counter,rotating |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Status | ACTIVE |
| Numeral Display Method | DRUM |
| Register Quantity | 1 |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Mounting Arrangement Style | FOUR POSITION SQUARE/RECTANGLE |
| Shaft Diameter | 0.078 INCHES NOMINAL IN |
| Register Function | UNABLE TO DECODE |
| Figure Quantity Per Register | UNABLE TO DECODE |
| Style Designator | UNENCLOSED SQUARE OR RECTANGULAR |
| Longest Vertical Distance Between Mounting Centers | 0.656 INCHES NOMINAL IN |
| Actuating Device Location | RIGHT SIDE SINGLE REGISTER SINGLE TIER |
| Shaft Revolutions Per Count | UNABLE TO DECODE |
| Figure Height | UNABLE TO DECODE |
| Maximum Count Rate | UNABLE TO DECODE |
| Color | WHITE SECOND TEMP COEFFICIENT |
| Color | BLACK THIRD TEMP COEFFICIENT |
| Mounting Type for Which Designed | UNABLE TO DECODE |
| Register Reset Method | UNABLE TO DECODE |
| Shaft Rotation Direction and Maximum Speed in RPM | UNABLE TO DECODE |
| Longest Horizontal Distance Between Mounting Centers | 0.656 INCHES NOMINAL IN |
| 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 |
|---|---|
| X-2650-1 | 3/2 Design control — primary reference U.S. Government activity |
| X-2650 | 5/9 Secondary reference U.S. Government activity |
| S173643 | 5/9 Secondary reference Dynapar Corp Div Specialty Product Technologies |
| G290-037-001 | 5/9 Secondary reference U.S. Government activity |
| A748-1 | 5/9 Secondary reference U.S. Government activity |
NSN 6680-00-989-4076 is a Counter,rotating, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 7435-01-579-6624. Verify interchangeability with system specifications before substitution.
Key specifications for 6680-00-989-4076: Numeral Display Method: DRUM; Register Quantity: 1; Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Overall Height: 1.277 INCHES NOMINAL IN. 19 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.