The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-027-0197, 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 28 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments (FSG 66) |
| Parameter | Value |
|---|---|
| NSN | 6685-01-027-0197 |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Scale Accuracy | PORM 0.5 PCT. |
| Scale Name | PRESSURE |
| Overall Diameter | 5.875 INCHES NOMINAL IN |
| Actuation Type | BOURDON TUBE |
| Mounting Connection Location | BACK |
| Mounting Method | CONNECTION |
| Scale Inscription/background Color | BLACK MARKINGS ON WHITE BACKGROUND |
| Scale Smallest Increment | 5.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Connection Type | EXTERNAL |
| Scale Range | +0.000 TO 400.000 POUNDS PER SQUARE INCH LBS |
| Pointer Type | INDICATING |
| Accessory Components and Quantity | WIDE FLANGE FLUSH MOUNTING RING 1 |
| Adjustability | ADJUSTABLE |
| Scale Type | DIAL |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 4-1/2 IN. DIA. IN |
| Graduation Unit | 50.000 POUNDS PER SQUARE INCH LBS |
| Connection Location | BACK |
| Color | BLACK CASE |
| Pointer Color | BLACK |
| Surface Treatment | EPOXY CASE |
| Material | GLASS PROTECTIVE CRYSTAL |
| Material | STEEL CORROSION RESISTING ACTUATING ELEMENT |
| Material | ALUMINUM CASE |
| Connection Quantity | 1 |
| Bezel Type | THREAD |
| Connection Size | 0.250 IN. NPT IN |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY RANGE |
| 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 |
|---|---|
| 1379-S-4 1/2-S-BACK 1/4 NPT-0/4- | 3/1 Design control — primary reference Ashcroft Inc Dba Heise |
NSN 6685-01-027-0197 is a Gage,pressure,dial Indicating, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
Key specifications for 6685-01-027-0197: Scale Accuracy: PORM 0.5 PCT.; Scale Name: PRESSURE; Overall Diameter: 5.875 INCHES NOMINAL IN; Actuation Type: BOURDON TUBE. 28 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.