The Manometer,vertical Tube, cataloged under National Stock Number 6685-01-640-7240, 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 Kidde Technologies, Inc Div Kidde Aerospace and Defense. Government technical data includes 2 specifications, 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 | 6685-01-640-7240 |
| Primary Part Number | 346000 |
| Item Name | Manometer,vertical Tube |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Kidde Technologies, Inc Div Kidde Aerospace and Defense |
| Status | ACTIVE |
| Indicating Liquid for Which Designed | MERCURY |
| Receptacle Type | WELL |
| 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 |
|---|---|
| 346000 PRIMARY | Kidde Technologies, Inc Div Kidde Aerospace and Defense (USA) |
NSN 6685-01-640-7240 is a Manometer,vertical Tube, manufactured by Kidde Technologies, Inc Div Kidde Aerospace and Defense, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-640-7240 has 1 manufacturer part number on file: 346000 (Kidde Technologies, Inc Div Kidde Aerospace and Defense).
Key specifications for 346000: Indicating Liquid for Which Designed: MERCURY; Receptacle Type: WELL; Special Features: W/RAPID SHUT OFF CONNECTORS. 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.