The Gage,vacuum,indicating, cataloged under National Stock Number 6685-01-669-1784, 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 Ashcroft Inc Dba Heise. Government technical data includes 19 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 | 6685-01-669-1784 |
| Primary Part Number | 45-2274-SD-02L-30-IMV |
| Item Name | Gage,vacuum,indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | ACTIVE |
| Mounting Hole Quantity | 3 |
| Circuit Current for Which Designed | DC |
| Scale Accuracy | 0.25 PERCENT OF FULL SCALE TERNINAL POINT |
| Scale Name | INCHES OF MERCURY AND VACUUM |
| Display Digit Quantity | 5 |
| Overall Diameter | 5.81 INCHES NOMINAL IN |
| Mounting Connection Location | BACK |
| Mounting Method | PANEL FLANGE |
| Power Source | EXTERNAL |
| Scale Range | +0.0 TO 30.0 INCHES OF MERCURY IN |
| Mounting Hole Diameter | 0.24 INCHES NOMINAL IN |
| Scale Type | DIGITAL |
| Display Type | LIQUID CRYSTAL |
| Dial Size | 4.5 INCHES IN |
| Bolt Circle Diameter | 5.7 INCHES NOMINAL IN |
| Connection Location | BOTTOM |
| Material | PLASTIC CASE |
| Connection Quantity | 1 |
| Connection Size | 1/4 INCH NPT IN |
| 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 |
|---|---|
| 45-2274-SD-02L-30-IMV PRIMARY | Ashcroft Inc Dba Heise (USA) |
NSN 6685-01-669-1784 is a Gage,vacuum,indicating, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-669-1784 has 1 manufacturer part number on file: 45-2274-SD-02L-30-IMV (Ashcroft Inc Dba Heise).
Key specifications for 45-2274-SD-02L-30-IMV: Mounting Hole Quantity: 3; Overall Height: 6.805 INCHES NOMINAL IN; Circuit Current for Which Designed: DC; Scale Accuracy: 0.25 PERCENT OF FULL SCALE TERNINAL POINT. 19 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.