The Calibrator,thermometer, cataloged under National Stock Number 6685-01-581-4566, 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 Hart Scientific Llc. Government technical data includes 1 specification, 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-581-4566 |
| Primary Part Number | 9011-B |
| Item Name | Calibrator,thermometer |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Hart Scientific Llc |
| Status | ACTIVE |
| DC Voltage Rating | 115.0 VOLTS NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 9011-B PRIMARY | Hart Scientific Llc (USA) |
NSN 6685-01-581-4566 is a Calibrator,thermometer, manufactured by Hart Scientific Llc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-581-4566 has 1 manufacturer part number on file: 9011-B (Hart Scientific Llc).
1 possible match (shared part number, not a government interchangeability claim): 6350-01-631-6360. Verify interchangeability with system specifications before substitution.
Key specifications for 9011-B: DC Voltage Rating: 115.0 VOLTS NOMINAL; Special Features: HIGH ACCURACY LABORATORY AS WELL AS HELD CALIBRATIONS, MULTI-HOLE INTERCHANGEABLE INSERTS CAN CALIBRATE UP TO EIGHT PROBES AT THE SAME TIME. TWO INDEPENDANT TEMPERATURE CONTROLLERS. 1 specification is 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.
NSN 6685-01-581-4566 has DEMIL Code B. 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.