The Pyrometer,indicating, cataloged under National Stock Number 6685-00-897-4409, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-00-897-4409 |
| Item Name | Pyrometer,indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Scale Calibration | CALIBRATED TO IRON CONSTANTAN THERMOCOUPLE |
| Scale Smallest Increment | 0.5 DEG FAHRENHEIT |
| Scale Accuracy Rating | PORM 0.2 PCT OF RANGE ACCURACY RATING |
| Measurement Type | POTENTIOMETER CIRCUIT |
| Pointer/pen Type and Quantity | 4 INDICATING MULTIPLE |
| Scale Type | DRUM |
| Case Type | HINGED LID CARRYING CASE W/HANDLE |
| Scale Length | 27.500 INCHES NOMINAL IN |
| Material | ALUMINUM 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 |
| Reference | Meaning |
|---|---|
| 8693-2-048-009 | 3/9 Design control — primary reference Leeds and Northrup Co a Unit of General Signal Corp |
| 8693-048-009 | 5/9 Secondary reference Leeds and Northrup Co a Unit of General Signal Corp |
NSN 6685-00-897-4409 is a Pyrometer,indicating, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
Key specifications for 6685-00-897-4409: Scale Calibration: CALIBRATED TO IRON CONSTANTAN THERMOCOUPLE; Scale Smallest Increment: 0.5 DEG FAHRENHEIT; Scale Accuracy Rating: PORM 0.2 PCT OF RANGE ACCURACY RATING; Measurement Type: POTENTIOMETER CIRCUIT. 9 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.