The Gage,liquid Quantity,float Type, cataloged under National Stock Number 6680-00-522-1645, 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 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6680-00-522-1645 |
| Primary Part Number | 8680-01438 |
| 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 |
| Mounting Method | THREAD |
| Scale Smallest Increment | 0.062 TANK |
| Scale Type | STATIONARY |
| Thread Size | 1-1/2-11-1/2 |
| 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 |
|---|---|
| 8680-01438 PRIMARY | Rochester Sensors, Llc (USA) |
| Reference | Meaning |
|---|---|
| 53522 | 5/2 Secondary reference U.S. Government activity |
| 8680-00000L7 3-4 | 3/9 Design control — primary reference Rochester Sensors, Llc |
| 8680-00000L | 3/1 Design control — primary reference Rochester Sensors, Llc |
NSN 6680-00-522-1645 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 6680-00-522-1645 has 1 manufacturer part number on file: 8680-01438 (Rochester Sensors, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-528-7946. Verify interchangeability with system specifications before substitution.
Key specifications for 8680-01438: Indicator Type: DIAL; Mounting Method: THREAD; Scale Smallest Increment: 0.062 TANK; Scale Type: STATIONARY. 5 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.