The Indicator,sight,liquid, cataloged under National Stock Number 6680-00-080-8411, 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 Drs Environmental Systems Inc. Government technical data includes 6 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6680-00-080-8411 |
| Primary Part Number | 250574 |
| Item Name | Indicator,sight,liquid |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Drs Environmental Systems Inc |
| Status | ACTIVE |
| Style Designator | BULLS EYE |
| Coupling Adapter Length | 0.950 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE |
| Media for Which Designed | OIL |
| Material | ALUMINUM ALLOY |
| Sight Diameter | 0.750 INCHES NOMINAL IN |
| 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 |
|---|---|
| 250574 | Drs Environmental Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 250574 | 5/9 Secondary reference Davey Compressor Co Div of Keco Industries Inc |
| M35A | 3/2 Design control — primary reference U.S. Government activity |
| 250574 | 5/9 Secondary reference Kidde-Fenwal, Llc |
NSN 6680-00-080-8411 is a Indicator,sight,liquid, manufactured by Drs Environmental Systems Inc, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-00-080-8411 has 1 manufacturer part number on file: 250574 (Drs Environmental Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 6635-01-381-6839. Verify interchangeability with system specifications before substitution.
Key specifications for 250574: Overall Height: 0.950 INCHES NOMINAL IN; Style Designator: BULLS EYE; Coupling Adapter Length: 0.950 INCHES NOMINAL IN; Surface Treatment: ANODIZE. 6 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.