The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-310-2173, 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 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6680-01-310-2173 |
| Primary Part Number | TMS-4916 |
| 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 |
| Nominal Pipe Size for Which Designed | UNABLE TO DECODE |
| Data Furnishing Method | CLEAR WINDOW |
| End Connection Type | UNABLE TO DECODE |
| Style Designator | GAGE VALVE |
| Distance Between Mounting Facility Centers | 12.000 INCHES NOMINAL IN |
| Maximum Working Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Material | COPPER ALLOY |
| Sight Diameter | 0.625 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 |
|---|---|
| TMS-4916 | Clark-Reliance Llc (USA) |
| Reference | Meaning |
|---|---|
| EEP 3 L150 EEP/.50IN-12" CTOC | 5/9 Secondary reference Ernst Flow Industries Llc Div Ernst Flow Industries |
| EFI3/.50IN-12" CTOC | 3/9 Design control — primary reference Ernst Flow Industries Llc Div Ernst Flow Industries |
NSN 6680-01-310-2173 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 6680-01-310-2173 has 1 manufacturer part number on file: TMS-4916 (Clark-Reliance Llc).
Key specifications for TMS-4916: Furnished Data: LIQUID LEVEL; Nominal Pipe Size for Which Designed: UNABLE TO DECODE; Data Furnishing Method: CLEAR WINDOW; End Connection Type: UNABLE TO DECODE. 9 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.