The Venturi Meter, cataloged under National Stock Number 6680-01-581-3952, 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 Hyspan Precision Products, Inc. Dba Hyspan Precision Products Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-01-581-3952 |
| Primary Part Number | BR53745-64-41 |
| Item Name | Venturi Meter |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Hyspan Precision Products, Inc. Dba Hyspan Precision Products Inc |
| Status | ACTIVE |
| Throat Diameter | 4.000 INCHES NOMINAL IN |
| End Type | ANY ACCEPTABLE |
| 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 |
|---|---|
| BR53745-64-41 PRIMARY | Hyspan Precision Products, Inc. Dba Hyspan Precision Products Inc (USA) |
| BR53745-64-41 PRIMARY | Hyspan Precision Products, Inc. (USA) |
NSN 6680-01-581-3952 is a Venturi Meter, manufactured by Hyspan Precision Products, Inc. Dba Hyspan Precision Products Inc, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-581-3952 has 2 manufacturer part numbers on file: BR53745-64-41 (Hyspan Precision Products, Inc. Dba Hyspan Precision Products Inc), BR53745-64-41 (Hyspan Precision Products, Inc.).
Key specifications for BR53745-64-41: Throat Diameter: 4.000 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: VENTURI METER 4"; End Item Identification: VENTURI METER SIZE 4.000 INCH BR53745-64-41 IN; End Type: ANY ACCEPTABLE. 2 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.