The Calibrator,thermometer, cataloged under National Stock Number 6685-01-125-9489, 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 Isotech North America Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6685-01-125-9489 |
| Primary Part Number | A-13 W FLASK |
| Item Name | Calibrator,thermometer |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Isotech North America Inc |
| Status | ACTIVE |
| Overall Diameter | 13.0 MILLIMETERS NOMINAL MM |
| Functional Description | USED IN CALIBRATION OF THERMOMETERS AND TO ESTABLISH THE ZERO AND EVALUATE THE STABILITY OF OTHER TEMP SENSING DEVICES; DEWER FLASK USED TO PACK CELL IN ICE |
| Furnished Items and Quantity | DEWAR FLASK 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 |
|---|---|
| A-13 W FLASK PRIMARY | Isotech North America Inc (USA) |
| Reference | Meaning |
|---|---|
| A-11 W FLASK | 5/9 Secondary reference Jarrett Instrument Co Inc |
| A-13 W FLASK | 5/9 Secondary reference Jarrett Instrument Co Inc |
NSN 6685-01-125-9489 is a Calibrator,thermometer, manufactured by Isotech North America Inc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-125-9489 has 1 manufacturer part number on file: A-13 W FLASK (Isotech North America Inc).
Key specifications for A-13 W FLASK: Overall Diameter: 13.0 MILLIMETERS NOMINAL MM; Special Features: TRIPLE POINT OF WATER CELL; CYLINDRICAL BOROSCILICATE GLASS CONTAINER WITH PRECISION BORE REENTRANT TUBE WHICH SERVES AS THERMOMETER WELL; CELL FILLED WITH HIGH PURITY GAS-FREE WATER, SEALED; THERMOMETER WELL 12.598 INCH LENGTH; TUBULAR GLASS EXTRUSION AT TOP OF CELL SERVES AS HANDLE AS HOOK FOR SUPPORT IN ICE BATH AND AS A INDICATOR OF PARTIAL PRESSURE OF AIR IN CELL; MUST BE PROCURED WITH DEWER FLASK; DEWER FLASK MATERIAL STAINLESS STEEL, DIMENSIONS 8.503 I.D., 24.015 INCH DEPTH IN; Functional Description: USED IN CALIBRATION OF THERMOMETERS AND TO ESTABLISH THE ZERO AND EVALUATE THE STABILITY OF OTHER TEMP SENSING DEVICES; DEWER FLASK USED TO PACK CELL IN ICE; Furnished Items and Quantity: DEWAR FLASK 1. 3 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.