The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-897-4029, 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 30 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 6685-00-897-4029 |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Mounting Hole Quantity | 3 |
| FSC Application Data | GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE |
| Scale Accuracy | 1 PCT ENTIRE RANGE |
| Scale Name | PRESSURE |
| Overall Diameter | 4.9375 INCHES NOMINAL IN |
| Actuation Type | SINGLE BOURDON TUBE |
| Mounting Method | FLUSH PANEL |
| Scale Inscription/background Color | BLACK FIGURES ON WHITE BACKGROUND |
| Scale Smallest Increment | 10.0 POUNDS LBS |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 600.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Mounting Hole Diameter | 0.188 INCHES NOMINAL IN |
| Pointer Type | INDICATING |
| Adjustability | NONADJUSTABLE |
| Scale Type | SINGLE |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 3.500 IN. DIA IN |
| Graduation Unit | 100.0 POUNDS LBS |
| Bolt Circle Diameter | 4.250 INCHES NOMINAL IN |
| Connection Location | BACK |
| Pointer Color | BLACK |
| Surface Treatment | ENAMEL CASE |
| Unable to Decode | UNABLE TO DECODE |
| Material | GLASS PROTECTIVE CRYSTAL |
| Material | BRONZE ACTUATING ELEMENT |
| Material | ALUMINUM CASE |
| Connection Quantity | 1 |
| Bezel Type | SLIPS-ON |
| Connection Size | 1/4 IN. NPT IN |
| Reference Number Differentiating Characteristics | FOR LIQUID OXYGEN USE ONLY |
| 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 |
|---|---|
| P630-2 | 3/1 Design control — primary reference U.S. Government activity |
NSN 6685-00-897-4029 is a Gage,pressure,dial Indicating, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
Key specifications for 6685-00-897-4029: Mounting Hole Quantity: 3; FSC Application Data: GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE; Scale Accuracy: 1 PCT ENTIRE RANGE; Scale Name: PRESSURE. 30 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.