The Thermometer,self-Indicating,digi, cataloged under National Stock Number 6685-01-645-1635, 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 Ashcroft Inc Dba Heise. Government technical data includes 4 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 | 6685-01-645-1635 |
| Primary Part Number | 30-EI-60-R-025-M50/P50DEGC-XPD |
| Item Name | Thermometer,self-Indicating,digi |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | ACTIVE |
| Measurement Type | MOVING COIL RATIOMETER |
| Operating Temp Range | -50.0 TO 50.0 CELSIUS DEGC |
| Environmental Attribute Code | NON-MERCURY ALTERNATIVE - MEDICAL PRODUCTS - THERMOMETERS |
| Material | STEEL CORROSION RESISTING METER CASE |
| 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 |
|---|---|
| 30-EI-60-R-025-M50/P50DEGC-XPD PRIMARY | Ashcroft Inc Dba Heise (USA) |
NSN 6685-01-645-1635 is a Thermometer,self-Indicating,digi, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-645-1635 has 1 manufacturer part number on file: 30-EI-60-R-025-M50/P50DEGC-XPD (Ashcroft Inc Dba Heise).
Key specifications for 30-EI-60-R-025-M50/P50DEGC-XPD: Measurement Type: MOVING COIL RATIOMETER; Special Features: WINDOW: PLASTIC; DIAL: MAXIVISION, BLACK FIGURES ON WHITE BACKGROUND; POINTER: BLACK; DIAL SIZE: 3 INCHES; HERMETICALLY SEALED CASE TO PREVENT ENTRY OF MOISTURE, INTERIOR CORROSION AND COIL FREEZE-UP IN; Operating Temp Range: -50.0 TO 50.0 CELSIUS DEGC; Environmental Attribute Code: NON-MERCURY ALTERNATIVE - MEDICAL PRODUCTS - THERMOMETERS. 4 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.