The Meter,flow Rate Indicating, cataloged under National Stock Number 6680-01-103-0377, 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 27 specifications, cited from the U.S. Government catalog. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6680-01-103-0377 |
| 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 |
| Indicator Type | FLOAT MAGNETICALLY COUPLED TO SCALE POINTER |
| Inlet Connection Position for Which Designed | VERTICAL |
| Spinning Float | NOT INCLUDED |
| Design Type | CASE |
| Integral Pulsation Dampener | NOT INCLUDED |
| Mounting Method | DIRECT LINE |
| Dial Scale Marking Range | +3.4 TO 34.0 |
| Guide Type | SOLID ROD |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 316 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 30316 ASSN STD SINGLE MATERIAL RESPONSE FLOAT |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 316 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 30316 ASSN STD SINGLE MATERIAL RESPONSE TUBE |
| Inlet Connection Size | 0.500 IN. NPT IN |
| Inlet Connection Type | THREADED |
| Float Quantity | 1 |
| Alarm Signal | NOT INCLUDED |
| Scale Type | DIRECT CAPACITY READING |
| Outlet Connection Size | 0.500 IN. NPT IN |
| Unit Type | MOUNTED |
| Construction | INCLOSED W/SIGHT WINDOW |
| Outlet Connection Position for Which Designed | VERTICAL |
| Meter Type | FLOAT |
| Float Type | GUIDED |
| Integral Relief Valve | NOT INCLUDED |
| Base | NOT INCLUDED |
| Unable to Decode | UNABLE TO DECODE |
| Carrying Handle | NOT INCLUDED |
| Maximum Working Pressure | 1500.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 10A2227 | 5/9 Secondary reference Fischer and Porter Co |
| 10A2227/T62 | 5/1 Secondary reference Abb Ltd |
| 2593319 | C/1 Advisory reference — outside the item-of-supply concept Behne Machine Company Inc |
| 10A2227ABXXX3A2SXX | 3/9 Design control — primary reference Fischer and Porter Co |
| 0D-10-2642 | 5/9 Secondary reference Fischer and Porter Co |
| 10A2227/T62 | 5/9 Secondary reference Fischer and Porter Co |
| Y/523/0060/A051 | 5/1 Secondary reference Bae Systems Marine Limited |
| OD-10-2706 | 5/1 Secondary reference Abb Ltd |
NSN 6680-01-103-0377 is a Meter,flow Rate Indicating, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5315-01-237-5648. Verify interchangeability with system specifications before substitution.
Key specifications for 6680-01-103-0377: Scale Quantity: 1; Indicator Type: FLOAT MAGNETICALLY COUPLED TO SCALE POINTER; Inlet Connection Position for Which Designed: VERTICAL; Spinning Float: NOT INCLUDED. 27 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.