The Transmitter,rate of Flow, cataloged under National Stock Number 6680-01-440-9171, 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 Fti Flow Technology Llc. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-01-440-9171 |
| Primary Part Number | FT4-8AER2-GEH-1 |
| Item Name | Transmitter,rate of Flow |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Fti Flow Technology Llc |
| Status | ACTIVE |
| Actuation Method | IMPELLER WHEEL AND MOTION AND MAGNET |
| Attachment Feature Quantity | 2 |
| Terminal Quantity | 2 |
| Current Type | AC/DC |
| Mechanical Connection Quantity | 2 |
| Terminal Type | CONNECTOR, RECEPTACLE |
| Electrical Connection Quantity | 1 |
| Overall Diameter | 1.000 INCHES NOMINAL IN |
| Electrical Connection Identifying Number | MS3102-10SL-4P |
| Mechanical Connection Type | MALE THREADED TUBE |
| Mechanical Connection Size | 1/2 INCH AN IN |
| Measurement Range | +0.5 TO 50.0 GALLONS PER MINUTE |
| Electrical Connection Controlling Agency | MILITARY SPECIFICATION |
| Frequency Rating | 45.0 KILOHERTZ NOMINAL |
| Voltage Rating | 30.0 MILLIVOLTS NOMINAL AND 10.0 VOLTS NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| FT4-8AER2-GEH-1 PRIMARY | Fti Flow Technology Llc (USA) |
| Reference | Meaning |
|---|---|
| FT6-8AER1-PEA-1 | 5/9 Secondary reference Fti Flow Technology Llc |
NSN 6680-01-440-9171 is a Transmitter,rate of Flow, manufactured by Fti Flow Technology Llc, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-440-9171 has 1 manufacturer part number on file: FT4-8AER2-GEH-1 (Fti Flow Technology Llc).
Key specifications for FT4-8AER2-GEH-1: Actuation Method: IMPELLER WHEEL AND MOTION AND MAGNET; Attachment Feature Quantity: 2; Terminal Quantity: 2; Current Type: AC/DC. 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.
NSN 6680-01-440-9171 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.