The Counter,electrical, cataloged under National Stock Number 6680-00-466-2137, 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 Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc. Government technical data includes 17 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-00-466-2137 |
| Primary Part Number | R7809 |
| Item Name | Counter,electrical |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc |
| Status | ACTIVE |
| Numeral Display Method | DRUM |
| Register Quantity | 1 |
| Mounting Facility Type and Quantity | 2 THREADED HOLE(S) AND 1 THREADED STUD(S) |
| Mounting Arrangement Style | TWO POSITION HORIZONTAL |
| Register Function | SUBTRACT SINGLE REGISTER SINGLE TIER |
| Voltage in Volts and Current Type | 29.0 DC |
| Figure Quantity Per Register | 3 SINGLE REGISTER SINGLE TIER |
| Style Designator | ELECTRICAL CASED |
| Numeral Readout | 000 MINIMUM AND 999 MAXIMUM SINGLE REGISTER SINGLE TIER |
| Figure Height | 0.094 INCHES NOMINAL SINGLE REGISTER SINGLE TIER IN |
| Maximum Count Rate | 720.0 PER MINUTE SINGLE REGISTER SINGLE TIER |
| Color | BLACK SINGLE REGISTER SINGLE TIER FIGURE BACKGROUND |
| Color | WHITE SINGLE REGISTER SINGLE TIER FIGURE |
| Mounting Type for Which Designed | PANEL SINGLE REGISTER SINGLE TIER |
| Register Reset Method | TOTAL COUNTER MANUAL SINGLE REGISTER SINGLE TIER |
| Terminal Type and Quantity | 2 SOLDER HOOK |
| Longest Horizontal Distance Between Mounting Centers | 0.562 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 |
| Part Number | Manufacturer |
|---|---|
| R7809 PRIMARY | Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc (USA) |
| Reference | Meaning |
|---|---|
| C4246 | 5/1 Secondary reference U.S. Government activity |
| C4246-1 | 7/2 Vendor item drawing reference U.S. Government activity |
| R7809 | 5/9 Secondary reference U.S. Government activity |
NSN 6680-00-466-2137 is a Counter,electrical, manufactured by Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-00-466-2137 has 1 manufacturer part number on file: R7809 (Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc).
Key specifications for R7809: Numeral Display Method: DRUM; Register Quantity: 1; Mounting Facility Type and Quantity: 2 THREADED HOLE(S) AND 1 THREADED STUD(S); Overall Height: 0.990 INCHES NOMINAL IN. 17 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.