The Hygrothermograph, cataloged under National Stock Number 6685-01-463-1845, 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 Forestry Suppliers Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6685-01-463-1845 |
| Primary Part Number | 92544 |
| Item Name | Hygrothermograph |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Forestry Suppliers Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 92544 PRIMARY | Forestry Suppliers Inc (USA) |
| Reference | Meaning |
|---|---|
| 98-2134 | 5/1 Secondary reference U.S. Government activity |
| WEATHERTRONICS HI Q | 5/1 Secondary reference Forestry Suppliers Inc |
NSN 6685-01-463-1845 is a Hygrothermograph, manufactured by Forestry Suppliers Inc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-463-1845 has 1 manufacturer part number on file: 92544 (Forestry Suppliers Inc).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-511-2524. Verify interchangeability with system specifications before substitution.
Key specifications for 92544: Special Features: WEATHERTRONICS HI Q; DIM: 12.5 IN. L X 11.5 IN. H X 6 IN. D; CHROME-PLATED BRASS INTERNAL PARTS; PIVOTS ARE POLISHED INSTRUMENT GRADE STAINLESS STEEL; HAS AN EXTERNALLY OPERATED PEN LIFTER; BASE OF CASE IS CAST ALUMINUM; LARGE OPENINGS IN THE SIDES, END, AND BOTTOM TO PERMIT FREE FLOW OF AMBIENT AIR TO THE SENSORS; CLEAR GLASS WINDOW EXPOSES THE CHART AND THE INTERNAL MECHANISMS FOR VIEWING; SPAN: TEMPERATURE, 110 DEG F/60 DEG C, ADJUSTABLE UP OR DOWN SCALE; HUMIDITY, 0-100%; REQUIRES TWO "AA" ALKALINE BATTERIES; QUALITY WEATHER INSTRUMENT USED TO MEASURE AND RECORD TEMPERATURE AND RELATIVE HUMIDITY; MAY BE INSTALLED INDOORS OR OUTDOORS IN A PROTECTIVE SHELTER IN; Part Name Assigned by Controlling Agency: HYGROTHERMOGRAPH WEATHERTRONICS HI Q 12.5IN X 11.5IN X 6IN IN. 0 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.