The Radiosonde Set, cataloged under National Stock Number 6660-01-155-6438, is classified within Federal Supply Class 6660 (Meteorological Instruments and Apparatus) of the Instruments and Laboratory Equipment group. The manufacturer of record is Lockheed Martin Sippican, Inc. Div Lockheed Martin Marion. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6660-01-155-6438 |
| Primary Part Number | VIZ-1799-310 |
| Item Name | Radiosonde Set |
| FSC / FSG | 6660 / 66 — Meteorological Instruments and Apparatus |
| Manufacturer | Lockheed Martin Sippican, Inc. Div Lockheed Martin Marion |
| Status | ACTIVE |
| Power Output Rating | 200.0 MILLIWATTS |
| Emission Type | F9 AND P0 |
| Radio Frequency Rating | 1660.0 MEGAHERTZ MINIMUM AND 1700.0 MEGAHERTZ MAXIMUM |
| Meteorological Condition Transmitted | RELATIVE HUMIDITY AND TEMPERATURE |
| Meteorological Condition Transmission Range | -90.0 TO 68.0 DEG CELSIUS AND +10.0 TO 100.0 PERCENT |
| Carrier Type | BALLOON |
| Usage Design | AIRBORNE |
| 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 |
|---|---|
| VIZ-1799-310 PRIMARY | Lockheed Martin Sippican, Inc. Div Lockheed Martin Marion (USA) |
| Reference | Meaning |
|---|---|
| VIZ-1799-310 | 5/9 Secondary reference Viz Manufacturing Company |
| MMC82-036A | 5/9 Secondary reference U.S. Government activity |
NSN 6660-01-155-6438 is a Radiosonde Set, manufactured by Lockheed Martin Sippican, Inc. Div Lockheed Martin Marion, classified under FSC 6660, Meteorological Instruments and Apparatus. Status: active.
NSN 6660-01-155-6438 has 1 manufacturer part number on file: VIZ-1799-310 (Lockheed Martin Sippican, Inc. Div Lockheed Martin Marion).
Key specifications for VIZ-1799-310: Overall Height: 250.0 MILLIMETERS NOMINAL MM; Power Output Rating: 200.0 MILLIWATTS; Emission Type: F9 AND P0; Radio Frequency Rating: 1660.0 MEGAHERTZ MINIMUM AND 1700.0 MEGAHERTZ MAXIMUM. 7 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.