The Meter,flow Rate Indicating, cataloged under National Stock Number 6680-01-534-8465, 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 Mcmaster-Carr Supply Co. Government technical data includes 28 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-01-534-8465 |
| Primary Part Number | 4041K21 |
| Item Name | Meter,flow Rate Indicating |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Scale Quantity | 1 |
| Indicator Type | SIGHT WINDOW SET DIRECTLY IN TUBE |
| Inlet Connection Position for Which Designed | HORIZONTAL |
| Design Type | CASE |
| Integral Pulsation Dampener | NOT INCLUDED |
| Mounting Method | DIRECT LINE |
| Dial Scale Marking Range | +0.0 TO 10000000.0 |
| Inlet Connection Device Type | STATIONARY |
| Inlet Connection Type | HOSE NIPPLE |
| Alarm Signal | NOT INCLUDED |
| Scale Type | DIRECT CAPACITY READING |
| Outlet Connection Device Type | STATIONARY |
| Unit Type | MOUNTED |
| Construction | INCLOSED W/SIGHT WINDOW |
| Outlet Connection Position for Which Designed | HORIZONTAL |
| Meter Type | POINTER CONNECTED TO VANE |
| Integral Relief Valve | NOT INCLUDED |
| Base | NOT INCLUDED |
| Unable to Decode | UNABLE TO DECODE |
| Carrying Handle | NOT INCLUDED |
| Maximum Working Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Material | COPPER ALLOY TUBE |
| Media for Which Designed | WATER, FRESH |
| Maximum Water Capacity in Gallons Per Minute | 20.0 |
| Integral Heat Source | NOT INCLUDED |
| Dial Scale Reference Pointer | INCLUDED |
| Outlet Connection Type | HOSE NIPPLE |
| 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 | X |
| Part Number | Manufacturer |
|---|---|
| 4041K21 PRIMARY | Mcmaster-Carr Supply Co (USA) |
NSN 6680-01-534-8465 is a Meter,flow Rate Indicating, manufactured by Mcmaster-Carr Supply Co, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-534-8465 has 1 manufacturer part number on file: 4041K21 (Mcmaster-Carr Supply Co).
Key specifications for 4041K21: Scale Quantity: 1; Indicator Type: SIGHT WINDOW SET DIRECTLY IN TUBE; Inlet Connection Position for Which Designed: HORIZONTAL; Design Type: CASE. 28 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.