The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-847-4075, 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30 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 6685-00-847-4075 |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Mounting Hole Quantity | 4 |
| FSC Application Data | GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE |
| Scale Accuracy | 1 PCT ENTIRE RANGE |
| Scale Name | PRESSURE |
| Overall Diameter | 3.469 INCHES NOMINAL IN |
| Actuation Type | SINGLE BOURDON TUBE |
| Mounting Method | FLUSH PANEL |
| Scale Inscription/background Color | BLACK FIGURES ON WHITE BACKGROUND |
| Scale Smallest Increment | 5.0 POUNDS LBS |
| Connection Type | EXTERNAL |
| Scale Range | +0.000 TO 500.000 POUNDS PRESSURE PER SQUARE INCH LBS |
| Mounting Hole Diameter | 0.187 INCHES NOMINAL IN |
| Pointer Type | INDICATING |
| Adjustability | NONADJUSTABLE |
| Scale Type | SINGLE |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 2-1/2 IN. DIA IN |
| Graduation Unit | 50.0 POUNDS LBS |
| Bolt Circle Diameter | 3.125 INCHES NOMINAL IN |
| Connection Location | BACK |
| Color | BLACK CASE |
| Pointer Color | BLACK |
| Surface Treatment | PAINT CRACKLE FINISH CASE |
| Material | BRASS CASE |
| Material | GLASS PROTECTIVE CRYSTAL |
| Material | BRONZE ACTUATING ELEMENT |
| Connection Quantity | 1 |
| Bezel Type | THREAD |
| Connection Size | 1/4 IN. NPT IN |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY SCALE DATA |
| 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 |
|---|---|
| 1009B | 3/1 Design control — primary reference Ashcroft Inc Dba Heise |
NSN 6685-00-847-4075 is a Gage,pressure,dial Indicating, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 6685-00-892-1712, 6685-00-959-4089, 6070-01-159-1363. Verify interchangeability with system specifications before substitution.
Key specifications for 6685-00-847-4075: Mounting Hole Quantity: 4; 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.