The Thermometer-Hygrometer, cataloged under National Stock Number 6685-01-706-3674, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Teledyne Flir, Llc Div Corporate. Government technical data includes 13 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 | 6685-01-706-3674 |
| Primary Part Number | HD500 |
| Item Name | Thermometer-Hygrometer |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Teledyne Flir, Llc Div Corporate |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 BATTERY AND 1 CASE |
| Unpackaged Unit Weight | 12.3 OUNCES NOMINAL OZ |
| Power Source | BATTERY |
| Measurement Type | DIGITAL |
| Battery Type | 9 VOLT |
| Style Designator | PORTABLE |
| Features Provided | BACKLIGHT |
| Display Type | LIQUID CRYSTAL |
| Operating Temp Range | +0.0 TO 50.0 CELSIUS DEGC |
| Measurement Unit | DEGREE CELSIUS AND DEGREE FAHRENHEIT |
| Installation Design | HANDHELD |
| Unit Design | DIGITAL |
| Battery Quantity | 1 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| HD500 PRIMARY | Teledyne Flir, Llc Div Corporate (USA) |
NSN 6685-01-706-3674 is a Thermometer-Hygrometer, manufactured by Teledyne Flir, Llc Div Corporate, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-706-3674 has 1 manufacturer part number on file: HD500 (Teledyne Flir, Llc Div Corporate).
Key specifications for HD500: Furnished Items and Quantity: 1 BATTERY AND 1 CASE; Overall Height: 10.0 INCHES NOMINAL IN; Unpackaged Unit Weight: 12.3 OUNCES NOMINAL OZ; Power Source: BATTERY. 13 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.