The Thermometer,self-Indicating, cataloged under National Stock Number 6685-01-461-6356, 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 2 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6685-01-461-6356 |
| Item Name | Thermometer,self-Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Style Designator | IMMERSION RING TOP |
| Scale Type | CIRCULAR |
| 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 |
|---|---|
| 566-01 | 3/2 Design control — primary reference U.S. Government activity |
| 98-0897 | 5/1 Secondary reference U.S. Government activity |
NSN 6685-01-461-6356 is a Thermometer,self-Indicating, 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): 5836-01-582-2401. Verify interchangeability with system specifications before substitution.
Key specifications for 6685-01-461-6356: Style Designator: IMMERSION RING TOP; Overall Length: 12.000 INCHES NOMINAL IN; Scale Type: CIRCULAR; Special Features: REPLACEMENT THERMOMETER; -20 TO -110 DEGREES RANGE; MERCURY FILLED; LABORATORY GRADE; SINGLE SCALE (CELSIUS) WITH YELLOW BACK; CAN BE TOTALLY IMMERSED. 2 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.