The Counter,rotating, cataloged under National Stock Number 6680-01-221-1936, 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 16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-01-221-1936 |
| 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 | 2 SCREW |
| Mounting Arrangement Style | TWO POSITION DIAGONAL |
| Shaft Diameter | 0.125 INCHES NOMINAL IN |
| Figure Quantity Per Register | UNABLE TO DECODE |
| Style Designator | SQUARE/RECTANGULAR CASED |
| Longest Vertical Distance Between Mounting Centers | 0.187 INCHES NOMINAL IN |
| Actuating Device Location | RIGHT SIDE ALL REGISTERS ALL TIERS |
| Shaft Revolutions Per Count | UNABLE TO DECODE |
| Figure Height | UNABLE TO DECODE |
| Shaft Length | 0.437 INCHES NOMINAL IN |
| Maximum Count Rate | UNABLE TO DECODE |
| Mounting Type for Which Designed | UNABLE TO DECODE |
| Shaft Rotation Direction and Maximum Speed in RPM | UNABLE TO DECODE |
| Longest Horizontal Distance Between Mounting Centers | 0.359 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 2430389-1 | 7/2 Vendor item drawing reference Honeywell Intl Inc Defense Avionics Systems |
| SI1008 | 3/9 Design control — primary reference Melland Gear & Instrument of Hauppauge, Inc |
NSN 6680-01-221-1936 is a Counter,rotating, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
Key specifications for 6680-01-221-1936: Numeral Display Method: DRUM; Register Quantity: 1; Mounting Facility Type and Quantity: 2 SCREW; Overall Height: 0.836 INCHES NOMINAL IN. 16 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 6680-01-221-1936 has DEMIL Code Q. 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.