The Control,temperature,indicating, cataloged under National Stock Number 6685-01-374-3191, 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 Vilter Mfg Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-374-3191 |
| Primary Part Number | 1543B |
| Item Name | Control,temperature,indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Vilter Mfg Corp |
| Status | ACTIVE |
| Operating Temp Range | -20.0 TO 50.0 FAHRENHEIT DEGF |
| Operating Range | 5 TO 24 LB PRESSURE RANGE LBS |
| 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 |
|---|---|
| 1543B PRIMARY | Vilter Mfg Corp (USA) |
| Reference | Meaning |
|---|---|
| A80BAA-6 | C/1 Advisory reference — outside the item-of-supply concept Johnson Controls, Inc Div Building Efficiency |
NSN 6685-01-374-3191 is a Control,temperature,indicating, manufactured by Vilter Mfg Corp, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-374-3191 has 1 manufacturer part number on file: 1543B (Vilter Mfg Corp).
Key specifications for 1543B: Special Features: 20 FT OF CAPILLARY TUBE FT; Operating Temp Range: -20.0 TO 50.0 FAHRENHEIT DEGF; End Item Identification: CONTROLLER,MT; Operating Range: 5 TO 24 LB PRESSURE RANGE LBS. 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.