The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-368-8019, 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 29 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 6685-00-368-8019 |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Mounting Hole Quantity | 3 |
| Scale Accuracy | 1/2 OF 1 PCT OF FULL RANGE |
| Scale Name | PRESSURE |
| Overall Diameter | 5.813 INCHES NOMINAL IN |
| Actuation Type | SINGLE BOURDON TUBE |
| Mounting Method | SURFACE WALL |
| Scale Inscription/background Color | BLACK FIGURES ON WHITE BACKGROUND |
| Scale Smallest Increment | 5.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Connection Type | EXTERNAL |
| Scale Range | +0.000 TO 300.000 POUNDS PER SQUARE INCH LBS |
| Mounting Hole Diameter | 0.219 INCHES NOMINAL IN |
| Scale Name for Which Pointer Is Designed | POUNDS PRESSURE |
| Pointer Type | INDICATING |
| Adjustability | ADJUSTABLE |
| Scale Type | CONCENTRIC ARC DIAL |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 4-1/2 IN. DIA IN |
| Graduation Unit | 25.0 POUNDS PER SQUARE INCH LBS |
| Bolt Circle Diameter | 5.375 INCHES NOMINAL IN |
| Connection Location | BACK, LOWER |
| Color | BLACK CASE |
| Pointer Color | BLACK |
| Surface Treatment | ENAMEL CASE |
| Material | ALUMINUM ALLOY CASE |
| Material | GLASS PROTECTIVE CRYSTAL |
| Material | STEEL CORROSION RESISTING ACTUATING ELEMENT |
| Connection Quantity | 1 |
| Bezel Type | THREAD |
| Connection Size | 1/4 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 |
| Reference | Meaning |
|---|---|
| 1379S | 3/1 Design control — primary reference Ashcroft Inc Dba Heise |
NSN 6685-00-368-8019 is a Gage,pressure,dial Indicating, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 6685-00-383-3388, 6685-00-383-3389, 4730-01-559-7349. Verify interchangeability with system specifications before substitution.
Key specifications for 6685-00-368-8019: Mounting Hole Quantity: 3; Scale Accuracy: 1/2 OF 1 PCT OF FULL RANGE; Scale Name: PRESSURE; Overall Diameter: 5.813 INCHES NOMINAL IN. 29 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.