The Monitor,temperatur, cataloged under National Stock Number 6685-00-421-4691, 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 L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Monitor,temperatur |
| FSC / FSG | 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments (FSG 66) |
| Manufacturers | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products (CAGE 00752) |
| Parameter | Value |
|---|---|
| NSN | 6685-00-421-4691 |
| Primary Part Number | 391996-29 |
| Item Name | Monitor,temperatur |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| 391996-29 | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products (USA) |
| Reference | Meaning |
|---|---|
| 4B100 | 3/2 Design control — primary reference U.S. Government activity |
NSN 6685-00-421-4691 is a Monitor,temperatur, manufactured by L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-00-421-4691 has 1 manufacturer part number on file: 391996-29 (L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products).
1 possible match (shared part number, not a government interchangeability claim): 5820-01-414-2400. Verify interchangeability with system specifications before substitution.
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.