The Counter,rotating, cataloged under National Stock Number 6680-01-121-0650, 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 Caterpillar Inc Div Caterpillar Defense. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-01-121-0650 |
| Primary Part Number | 2N8378 |
| Item Name | Counter,rotating |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Numeral Display Method | DRUM |
| Register Quantity | 1 |
| Mounting Facility Type and Quantity | 2 CLAMP |
| Register Function | UNABLE TO DECODE |
| Overall Diameter | 1.500 INCHES NOMINAL IN |
| Figure Quantity Per Register | UNABLE TO DECODE |
| Style Designator | CYLINDRICAL CASED |
| Shaft Revolutions Per Count | UNABLE TO DECODE |
| Unpackaged Unit Weight | 0.880 POUNDS LBS |
| Figure Height | UNABLE TO DECODE |
| Maximum Count Rate | UNABLE TO DECODE |
| Color | BLACK SECOND TEMP COEFFICIENT |
| Color | WHITE THIRD TEMP COEFFICIENT |
| Mounting Type for Which Designed | UNABLE TO DECODE |
| Cubic Measure | 6.000 CUBIC INCHES |
| Shaft Rotation Direction and Maximum Speed in RPM | UNABLE TO DECODE |
| 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 |
|---|---|
| 2N8378 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| M27Z106 | C/1 Advisory reference — outside the item-of-supply concept E N M Company (inc) (del) Dba E N M Digital Counters |
NSN 6680-01-121-0650 is a Counter,rotating, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-121-0650 has 1 manufacturer part number on file: 2N8378 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 2N8378: Numeral Display Method: DRUM; Register Quantity: 1; Mounting Facility Type and Quantity: 2 CLAMP; Register Function: UNABLE TO DECODE. 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.
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.