The Gage,compound Pressure-Vacuum,di, cataloged under National Stock Number 6685-01-140-0487, 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8 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-140-0487 |
| Item Name | Gage,compound Pressure-Vacuum,di |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Scale Accuracy | 2 PCT MIDDLE THIRD OFRANGE 3 PCT REMAINDER |
| Scale Name | PRESSURE-VACUUM |
| Actuation Type | BOURDON TUBE |
| Scale Range | +0.0 TO 30.0 INCHES OF MERCURY AND +0.0 TO 150.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Scale Type | SINGLE |
| Dial Size | 2-1/2 IN. DIA IN |
| Material | COPPER ALLOY 511 ACTUATING ELEMENT |
| Connection Size | 0.125 IN. NPT DIA IN |
| 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 |
|---|---|
| 53540 | 3/2 Design control — primary reference U.S. Government activity |
| 53540 | 3/9 Design control — primary reference U.S. Government activity |
| 53540 | 5/9 Secondary reference Drs Environmental Systems Inc |
NSN 6685-01-140-0487 is a Gage,compound Pressure-Vacuum,di, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5360-01-312-3717, 5130-01-598-4047. Verify interchangeability with system specifications before substitution.
Key specifications for 6685-01-140-0487: Scale Accuracy: 2 PCT MIDDLE THIRD OFRANGE 3 PCT REMAINDER; Scale Name: PRESSURE-VACUUM; Actuation Type: BOURDON TUBE; Scale Range: +0.0 TO 30.0 INCHES OF MERCURY AND +0.0 TO 150.0 POUNDS PRESSURE PER SQUARE INCH LBS. 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.