The Meter,flow Rate Indicating, cataloged under National Stock Number 6680-01-148-4550, 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 Oerlikon Metco Us Inc. Government technical data includes 26 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6680-01-148-4550 |
| Primary Part Number | 3GF |
| Item Name | Meter,flow Rate Indicating |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Oerlikon Metco Us Inc |
| Status | ACTIVE |
| Scale Quantity | 2 |
| 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 | +0.0 TO 100.0 |
| Guide Type | BEADED TUBE |
| Inlet Connection Type | THREADED |
| Float Quantity | 2 |
| Alarm Signal | NOT INCLUDED |
| Scale Type | DIRECT CAPACITY READING |
| Unit Type | MOUNTED |
| Float Quantity Per Tube | 1 |
| Construction | INCLOSED W/SIGHT WINDOW |
| Outlet Connection Position for Which Designed | VERTICAL |
| Meter Type | FLOAT |
| Float Type | GUIDED |
| Integral Relief Valve | NOT INCLUDED |
| Base | INCLUDED |
| Carrying Handle | NOT INCLUDED |
| Media for Which Designed | GAS |
| Integral Heat Source | NOT INCLUDED |
| Dial Scale Reference Pointer | INCLUDED |
| Outlet Connection Type | THREADED |
| Metering Tube Quantity | 2 |
| 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 |
|---|---|
| 3GF PRIMARY | Oerlikon Metco Us Inc (USA) |
| Reference | Meaning |
|---|---|
| 2GF | 5/9 Secondary reference Oerlikon Metco Us Inc |
| 2GF | 5/9 Secondary reference Metco Inc Sub of the Perkin-Elmer Corp |
NSN 6680-01-148-4550 is a Meter,flow Rate Indicating, manufactured by Oerlikon Metco Us Inc, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-148-4550 has 1 manufacturer part number on file: 3GF (Oerlikon Metco Us Inc).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-149-1772. Verify interchangeability with system specifications before substitution.
Key specifications for 3GF: Scale Quantity: 2; Inlet Connection Position for Which Designed: VERTICAL; Spinning Float: NOT INCLUDED; Design Type: CASE. 26 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.