The Counter,rotating, cataloged under National Stock Number 6680-00-901-6897, 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 Honeywell Intl Inc Defense Avionics Systems. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-00-901-6897 |
| Primary Part Number | 1789844-1 |
| Item Name | Counter,rotating |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Honeywell Intl Inc Defense Avionics Systems |
| Status | ACTIVE |
| Numeral Display Method | DRUM |
| Register Quantity | 1 |
| Mounting Facility Type and Quantity | 2 THREADED HOLE(S) |
| Mounting Arrangement Style | TWO POSITION DIAGONAL |
| Shaft Diameter | 0.078 INCHES NOMINAL IN |
| Figure Quantity Per Register | UNABLE TO DECODE |
| Style Designator | UNENCLOSED SQUARE OR RECTANGULAR |
| Longest Vertical Distance Between Mounting Centers | 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN |
| Actuating Device Location | RIGHT SIDE SINGLE REGISTER SINGLE TIER |
| Shaft Revolutions Per Count | UNABLE TO DECODE |
| Figure Height | UNABLE TO DECODE |
| Shaft Length | 0.250 INCHES NOMINAL IN |
| Maximum Count Rate | UNABLE TO DECODE |
| Color | WHITE SECOND TEMP COEFFICIENT |
| Color | BLACK THIRD TEMP COEFFICIENT |
| Mounting Type for Which Designed | UNABLE TO DECODE |
| Longest Horizontal Distance Between Mounting Centers | 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM 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 |
| Part Number | Manufacturer |
|---|---|
| 1789844-1 PRIMARY | Honeywell Intl Inc Defense Avionics Systems (USA) |
| AF-173634-104 | Dynapar Corp Div Specialty Product Technologies (USA) |
| Reference | Meaning |
|---|---|
| AF173634 | 5/9 Secondary reference Dynapar Corp Div Specialty Product Technologies |
| 173634-104 | 5/9 Secondary reference Dynapar Corp Div Specialty Product Technologies |
| 1789844 | 5/1 Secondary reference Honeywell Intl Inc Defense Avionics Systems |
| X2859 | 5/2 Secondary reference U.S. Government activity |
| 312022-003 | 5/9 Secondary reference Dynapar Corp Div Specialty Product Technologies |
NSN 6680-00-901-6897 is a Counter,rotating, manufactured by Honeywell Intl Inc Defense Avionics Systems, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-00-901-6897 has 2 manufacturer part numbers on file: 1789844-1 (Honeywell Intl Inc Defense Avionics Systems), AF-173634-104 (Dynapar Corp Div Specialty Product Technologies).
Key specifications for 1789844-1: Numeral Display Method: DRUM; Register Quantity: 1; Mounting Facility Type and Quantity: 2 THREADED HOLE(S); Overall Height: 1.016 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.
NSN 6680-00-901-6897 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.