The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-371-3741, 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 Clark-Reliance Llc. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-01-371-3741 |
| Primary Part Number | EMS-9725 |
| Item Name | Indicator,sight,liquid |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Clark-Reliance Llc |
| Status | ACTIVE |
| Furnished Data | LIQUID LEVEL |
| Data Furnishing Method | CLEAR WINDOW |
| Criticality Code Justification | FEAT |
| Material | COPPER ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| EMS-9725 PRIMARY | Clark-Reliance Llc (USA) |
| Reference | Meaning |
|---|---|
| 54-A 31 IN. C-C | 3/9 Design control — primary reference Essex Brass Corporation |
| EEP54A 31 IN. C-C | 5/9 Secondary reference Ernst Flow Industries Llc Div Ernst Flow Industries |
NSN 6680-01-371-3741 is a Indicator,sight,liquid, manufactured by Clark-Reliance Llc, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-371-3741 has 1 manufacturer part number on file: EMS-9725 (Clark-Reliance Llc).
Key specifications for EMS-9725: Furnished Data: LIQUID LEVEL; Data Furnishing Method: CLEAR WINDOW; Criticality Code Justification: FEAT; Special Features: 31 IN. CENTER TO CENTER IN. 4 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.