The Pyrometer,optical, cataloged under National Stock Number 6685-01-485-7785, 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 Palmer Wahl Instruments Inc.. Government technical data includes 1 specification, 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 | 6685-01-485-7785 |
| Primary Part Number | DHS26XL1 |
| Item Name | Pyrometer,optical |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Palmer Wahl Instruments Inc. |
| Status | ACTIVE |
| Functional Description | WILL MEASUR ALL NORNAL MATERIALS,INCLUDING GLASS SURFACES; OPTIONAL TELESCOPIC SIGHT T FOR BETTER TARGET DEFINITIONS AS WELL AS LED DISPLAY AND FM APPROVED MODELS; EXPANDED RANGE OF 0 TO 2000 DEG F, M20 TO P 1000 DEG C WITHOUT ANY LOSS IN THE PORM 3 PCT ACCURACY OF THE DHS-24 SERIES; SUITABLE TO ALL BUT THE MOST DEMANDING MAINTENANCE AND PROCESS APPLICATIONS DEGC |
| 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 |
|---|---|
| DHS26XL1 PRIMARY | Palmer Wahl Instruments Inc. (USA) |
NSN 6685-01-485-7785 is a Pyrometer,optical, manufactured by Palmer Wahl Instruments Inc., classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-485-7785 has 1 manufacturer part number on file: DHS26XL1 (Palmer Wahl Instruments Inc.).
Key specifications for DHS26XL1: Special Features: SPECTRAL RANGE 8-14; ACCURACY AT 77 DEG F PORM 5 DEG-PORM 0.3 PCT FS; RESOLUTION 1 DEG F/DEG C; AMBIENT OPERATING TEMP 25 TO 125 DEG F, M4 TO 52 DEG C; TEMP COEFFICIENT PORM 0.1 DEG/DEG; REPEATABILITY PORM 2 DEG F; RESPONSE TIME TO 95 PCT OF READING 1 SEC; TARGET SIZE AT FOCALPOINT 1 IN DIA AT 2 FT; DISTANCE TO TARGET SIZE BEYOND FOCAL POINT 20:1; PRACTICAL WORKING DISTANCE 0 TO 40 FT; SIGHTING SYSTEM ENCLOSED LASER OR TELESCOPE; ADJUSTABLE EMISSIVITY RANGE 0.2-1.0; OUTPUT TO RECORDER 1MV/DEG; CONTINUOUS OPERATING TIME PER BATTERY 40 HRS LASER 5 HRS IN; Functional Description: WILL MEASUR ALL NORNAL MATERIALS,INCLUDING GLASS SURFACES; OPTIONAL TELESCOPIC SIGHT T FOR BETTER TARGET DEFINITIONS AS WELL AS LED DISPLAY AND FM APPROVED MODELS; EXPANDED RANGE OF 0 TO 2000 DEG F, M20 TO P 1000 DEG C WITHOUT ANY LOSS IN THE PORM 3 PCT ACCURACY OF THE DHS-24 SERIES; SUITABLE TO ALL BUT THE MOST DEMANDING MAINTENANCE AND PROCESS APPLICATIONS DEGC; Part Name Assigned by Controlling Agency: HEAT SPY SERIES DHS-26. 1 specification is 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.