The Thermometer,self-Indicating, cataloged under National Stock Number 6685-00-239-4005, 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 Sigma Products & Mfg. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6685-00-239-4005 |
| Primary Part Number | 6-01039 |
| Item Name | Thermometer,self-Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Sigma Products & Mfg |
| Status | ACTIVE |
| Design Type | FLUCTUATING |
| Scale Smallest Increment | 2.0 DEG FAHRENHEIT |
| Features Provided | LENS MAGNIFYING FRONT |
| Scale Type | ETCHED STEM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
NSN 6685-00-239-4005 is a Thermometer,self-Indicating, manufactured by Sigma Products & Mfg, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-00-239-4005 has 2 manufacturer part numbers on file: 6-01039 (Sigma Products & Mfg), 98-102 (Controlled Air Systems Dba Casone.com).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-547-0713. Verify interchangeability with system specifications before substitution.
Key specifications for 6-01039: Design Type: FLUCTUATING; Scale Smallest Increment: 2.0 DEG FAHRENHEIT; Overall Length: 8.500 INCHES NOMINAL IN; Features Provided: LENS MAGNIFYING FRONT. 4 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). 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.