The Meter,flow Rate Indicating, cataloged under National Stock Number 6680-01-258-4301, 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. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-01-258-4301 |
| Item Name | Meter,flow Rate Indicating |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Status | ACTIVE |
| Scale Quantity | 1 |
| Inlet Connection Position for Which Designed | HORIZONTAL |
| Design Type | GLASS |
| Inlet Connection Size | 0.500 IN. IPS IN |
| Inlet Connection Type | THREADED |
| Float Quantity | 1 |
| Alarm Signal | NOT INCLUDED |
| Outlet Connection Size | 0.500 IN. IPS IN |
| Unit Type | MOUNTED |
| Outlet Connection Position for Which Designed | HORIZONTAL |
| Float Type | FREE |
| Maximum Working Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Material | GLASS TUBE |
| Outlet Connection Type | THREADED |
| Metering Tube Quantity | 1 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Reference | Meaning |
|---|---|
| 10A3655A | 3/9 Design control — primary reference Fischer and Porter Co |
NSN 6680-01-258-4301 is a Meter,flow Rate Indicating, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
Key specifications for 6680-01-258-4301: Scale Quantity: 1; Inlet Connection Position for Which Designed: HORIZONTAL; Design Type: GLASS; Inlet Connection Size: 0.500 IN. IPS IN. 15 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.