The Tester,pyrometer and Thermocoupl, cataloged under National Stock Number 6685-00-490-2956, 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 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-00-490-2956 |
| Item Name | Tester,pyrometer and Thermocoupl |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Point Quantity | 15 |
| Scale Accuracy | PORM 0.050 PCT ACCURACY RATING |
| Indicating Point Type | MULTIPLE |
| Scale Calibration | CALIBRATED TO IRON CONSTANTAN THERMOCOUPLE |
| Scale Smallest Increment | 0.01 MILLIVOLTS |
| Measurement Type | MILLIVOLT CIRCUIT |
| Scale Range | +0.0 TO 16.1 MILLIVOLTS OR +0.0 TO 80.5 MILLIVOLTS |
| Off Position Quantity | 1 |
| Accessory Components and Quantity | 3 BATTERIES,DRY CELL |
| Scale Type | ECCENTRIC |
| Case Type | HINGED LID CARRYING CASE W/HANDLE |
| Scale Length | 12.000 INCHES NOMINAL IN |
| Control Switch Type | 15 POINT DIAL SWITCH |
| Material | WOOD, OAK 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 |
|---|---|
| 8662S | 3/9 Design control — primary reference Leeds and Northrup Co a Unit of General Signal Corp |
NSN 6685-00-490-2956 is a Tester,pyrometer and Thermocoupl, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
Key specifications for 6685-00-490-2956: Point Quantity: 15; Overall Height: 9.250 INCHES NOMINAL IN; Scale Accuracy: PORM 0.050 PCT ACCURACY RATING; Indicating Point Type: MULTIPLE. 15 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.