The Gage,vacuum,indicating, cataloged under National Stock Number 6685-01-101-2574, 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 27 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-101-2574 |
| Primary Part Number | 20W1005H02LVAC |
| Item Name | Gage,vacuum,indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | ACTIVE |
| Scale Accuracy | PORM 2 PCT MIDDLE HALF,PORM 3 PCT REMAINDER |
| Scale Name | VACUUM |
| Overall Diameter | 2.188 INCHES NOMINAL IN |
| Actuation Type | BOURDON TUBE |
| Mounting Connection Location | BOTTOM |
| Mounting Method | RIGID STEM |
| Scale Inscription/background Color | BLACK MARKINGS ON WHITE BACKGROUND |
| Scale Smallest Increment | 1.0 INCHES OF MERCURY (INHG) IN |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 30.0 INCHES OF MERCURY IN |
| Pointer Type | INDICATING |
| Adjustability | ADJUSTABLE |
| Scale Type | SINGLE |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 2 IN. DIA IN |
| Graduation Unit | 5.0 INCHES OF MERCURY IN |
| Connection Location | BOTTOM |
| Pointer Color | BLACK |
| Surface Treatment | ENAMEL CASE |
| Surface Treatment | ENAMEL LOCATION NOT OTHERWISE SPECIFIED |
| Material | STEEL CASE |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Material | GLASS PROTECTIVE CRYSTAL |
| Material | COPPER ALLOY ACTUATING ELEMENT |
| Connection Quantity | 1 |
| Bezel Type | SLIPS-ON |
| Connection Size | 0.250 IN. 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 |
|---|---|
| 20W1005H02LVAC PRIMARY | Ashcroft Inc Dba Heise (USA) |
| Reference | Meaning |
|---|---|
| J1405 | 3/9 Design control — primary reference Desco Corp Marsh Bellofram Div |
| 20-1000-02L-30VAC | 5/9 Secondary reference Ashcroft Inc Dba Heise |
NSN 6685-01-101-2574 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 6685-01-101-2574 has 1 manufacturer part number on file: 20W1005H02LVAC (Ashcroft Inc Dba Heise).
Key specifications for 20W1005H02LVAC: Scale Accuracy: PORM 2 PCT MIDDLE HALF,PORM 3 PCT REMAINDER; Scale Name: VACUUM; Overall Diameter: 2.188 INCHES NOMINAL IN; Actuation Type: BOURDON TUBE. 27 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.