The Tester,pyrometer and Thermocoupl, cataloged under National Stock Number 6685-00-526-6930, 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 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6685-00-526-6930 |
| Item Name | Tester,pyrometer and Thermocoupl |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Scale Accuracy | 0.05 MILLIVOLT RATING |
| Indicating Point Type | SINGLE |
| Scale Calibration | IRON CONSTANTAN THERMOCOUPLE |
| Scale Smallest Increment | 0.05 MILLIVOLTS |
| Measurement Type | MILLIVOLT CIRCUIT |
| Scale Range | +0.0 TO 111.0 MILLIVOLTS |
| Accessory Components and Quantity | BATTERY,DRYCELL 1,CELL 1,POINTER,GALVANOMETER 1 |
| Scale Type | ECCENTRIC |
| Case Type | HINGED LID CARRYING CASE W/HANDLE |
| Material | WOOD CASE |
| Installation Design | PORTABLE |
| 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 |
|---|---|
| 8667 | 3/9 Design control — primary reference Leeds and Northrup Co a Unit of General Signal Corp |
NSN 6685-00-526-6930 is a Tester,pyrometer and Thermocoupl, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5970-01-100-7411. Verify interchangeability with system specifications before substitution.
Key specifications for 6685-00-526-6930: Overall Height: 7.875 INCHES NOMINAL IN; Scale Accuracy: 0.05 MILLIVOLT RATING; Indicating Point Type: SINGLE; Scale Calibration: IRON CONSTANTAN THERMOCOUPLE. 11 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.