The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-275-8409, 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 Cincinnati Gearing Systems Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6680-01-275-8409 |
| Primary Part Number | 4000-4434 |
| Item Name | Indicator,sight,liquid |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Cincinnati Gearing Systems Inc |
| Status | ACTIVE |
| Furnished Data | LIQUID FLOW |
| Data Furnishing Method | CLEAR WINDOW |
| End Connection Type | 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 |
|---|---|
| 4000-4434 PRIMARY | Cincinnati Gearing Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 90-4850-70101 | 5/9 Secondary reference The Cincinnati Gear Company Dba Power Transmission Systems |
NSN 6680-01-275-8409 is a Indicator,sight,liquid, manufactured by Cincinnati Gearing Systems Inc, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-275-8409 has 1 manufacturer part number on file: 4000-4434 (Cincinnati Gearing Systems Inc).
Key specifications for 4000-4434: Furnished Data: LIQUID FLOW; Data Furnishing Method: CLEAR WINDOW; End Connection Type: UNABLE TO DECODE; Special Features: FLANGE MOUNTING. 3 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.