The Gage,compound Pressure-Vacuum,di, cataloged under National Stock Number 6685-01-222-5553, 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 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6685-01-222-5553 |
| Primary Part Number | 45-1279AS-02B-15IN HG/120IN |
| Item Name | Gage,compound Pressure-Vacuum,di |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | ACTIVE |
| Scale Accuracy | 1 PCT OF ENTIRE RANGE |
| Scale Name | INCHES OF WATER AND VACUUM |
| Actuation Type | BELLOWS |
| Scale Inscription/background Color | BLACK FIGURES ON WHITE BACKGROUND |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 15.0 INCHES OF MERCURY AND +0.0 TO 120.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Hazardous Substances | PHENOL |
| Pointer Type | INDICATING |
| Adjustability | NONADJUSTABLE |
| Scale Type | MULTIPLE |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 4-1/2 IN. DIA IN |
| Pointer Color | BLACK |
| Material | BRASS ACTUATING ELEMENT |
| Material | PLASTIC PHENOL FORMALDEHYDE (PMO) CASE |
| Connection Quantity | 1 |
| Bezel Type | SNAP-ON |
| Connection Size | 0.250 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 |
| Part Number | Manufacturer |
|---|---|
| 45-1279AS-02B-15IN HG/120IN PRIMARY | Ashcroft Inc Dba Heise (USA) |
| Reference | Meaning |
|---|---|
| 45-1188A-00BLB2PM-1 | 5/9 Secondary reference Ashcroft Inc Dba Heise |
NSN 6685-01-222-5553 is a Gage,compound Pressure-Vacuum,di, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-222-5553 has 1 manufacturer part number on file: 45-1279AS-02B-15IN HG/120IN (Ashcroft Inc Dba Heise).
Key specifications for 45-1279AS-02B-15IN HG/120IN: Scale Accuracy: 1 PCT OF ENTIRE RANGE; Scale Name: INCHES OF WATER AND VACUUM; Actuation Type: BELLOWS; Scale Inscription/background Color: BLACK FIGURES ON WHITE BACKGROUND. 18 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.