The Gage,liquid Quantity,float Type, cataloged under National Stock Number 6680-00-421-1551, 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 Rochester Sensors, Llc. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6680-00-421-1551 |
| Primary Part Number | B8680-L9 |
| Item Name | Gage,liquid Quantity,float Type |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Rochester Sensors, Llc |
| Status | ACTIVE |
| Indicator Type | DIAL |
| Scale Calibration | EMPTY,1/3,1/2,3/4,FULL |
| Mounting Method | EXTERNAL THREAD |
| Scale Smallest Increment | 0.062 TANK |
| Float Protective Case | NOT PROVIDED |
| Oil Seal | NOT PROVIDED |
| Float Guide Wire | NOT PROVIDED |
| Scale Type | MOVABLE |
| Thread Size | 1-1/2-11-1/2 |
| Screw Thread Series Designator | NPT |
| Material | CORK FLOAT |
| 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 |
|---|---|
| B8680-L9 PRIMARY | Rochester Sensors, Llc (USA) |
| Reference | Meaning |
|---|---|
| 3201-93 | 5/9 Secondary reference Rochester Sensors, Llc |
| 13216E7459-1 | 7/2 Vendor item drawing reference U.S. Government activity |
| 114BR | 5/9 Secondary reference Hersey Products Inc |
NSN 6680-00-421-1551 is a Gage,liquid Quantity,float Type, manufactured by Rochester Sensors, Llc, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-00-421-1551 has 1 manufacturer part number on file: B8680-L9 (Rochester Sensors, Llc).
1 possible match (shared part number, not a government interchangeability claim): 6680-01-112-1089. Verify interchangeability with system specifications before substitution.
Key specifications for B8680-L9: Overall Height: 2.375 INCHES NOMINAL IN; Indicator Type: DIAL; Scale Calibration: EMPTY,1/3,1/2,3/4,FULL; Mounting Method: EXTERNAL THREAD. 11 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.