The Gage,compound Pressure-Vacuum,di, cataloged under National Stock Number 6685-01-464-8406, 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 8 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-464-8406 |
| Item Name | Gage,compound Pressure-Vacuum,di |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Scale Name | INCHES OF MERCURY AND POUNDS PRESSURE |
| Actuation Type | BOURDON TUBE |
| Scale Range | +0.0 TO 30.0 INCHES HG AND +0.0 TO 300.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Scale Type | DIAL |
| Dial Size | 3-1/2 IN. DIA IN |
| Graduation Unit | 10.0 INCHES OF MERCURY AND 5.0 POUNDS PER SQUARE INCH LBS |
| Connection Location | BACK |
| Pointer Color | BLACK |
| 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 |
|---|---|
| SC3MC3HCWCANA | 2/2 Government specification standardization U.S. Government activity |
| MIL-G-18997 | 4/1 Identification reference U.S. Government activity |
| SC3MC3HCWCANAG | 5/9 Secondary reference U.S. Government activity |
| EA243CGFRWB0 | 5/1 Secondary reference Ashcroft Inc Dba Heise |
NSN 6685-01-464-8406 is a Gage,compound Pressure-Vacuum,di, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
Key specifications for 6685-01-464-8406: Scale Name: INCHES OF MERCURY AND POUNDS PRESSURE; Actuation Type: BOURDON TUBE; Scale Range: +0.0 TO 30.0 INCHES HG AND +0.0 TO 300.0 POUNDS PRESSURE PER SQUARE INCH LBS; Scale Type: DIAL. 8 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.