The Gage,compound Pressure-Vacuum,di, cataloged under National Stock Number 6685-00-977-4381, 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 Weksler Glass Thermometer Corp. Government technical data includes 30 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-00-977-4381 |
| Primary Part Number | 819-4-35FCLCW |
| Item Name | Gage,compound Pressure-Vacuum,di |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Weksler Glass Thermometer Corp |
| Status | ACTIVE |
| Mounting Hole Quantity | 3 |
| Scale Accuracy | 1 PCT ENTIRE RANGE |
| Scale Name | COMPOUND |
| Overall Diameter | 5.281 INCHES NOMINAL IN |
| Actuation Type | SINGLE BOURDON TUBE |
| Mounting Method | FLUSH PANEL AND STUD(S) |
| Scale Inscription/background Color | BLACK FIGURES ON WHITE BACKGROUND |
| Scale Smallest Increment | 2.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Connection Type | INTERNAL |
| Scale Range | -30.0 TO 150.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Mounting Hole Diameter | 0.242 INCHES NOMINAL IN |
| Stud Location | BACK |
| Stud Quantity | 3 |
| Scale Name for Which Pointer Is Designed | PRESSURE-VACUUM |
| Pointer Type | INDICATING AND REFERENCE |
| Adjustability | ADJUSTABLE OR NONADJUSTABLE |
| Scale Type | SINGLE |
| Connector Type Vent | PROVIDED |
| Nondefinitive Spec/std Data | A DESIGN AND C TYPE |
| Dial Size | 4-1/2 IN.DIA IN |
| Graduation Unit | 2.0 INCHES AND 2.0 POUNDS PER SQUARE INCH LBS |
| Bolt Circle Diameter | 5.375 INCHES NOMINAL IN |
| Connection Location | BOTTOM |
| Pointer Color | BLACK AND RED |
| Surface Treatment | ENAMEL CASE |
| Unable to Decode | UNABLE TO DECODE |
| Material | STEEL ACTUATING ELEMENT |
| Material | PLASTIC PROTECTIVE CRYSTAL |
| Material | ALUMINUM CASE |
| Connection Quantity | 1 |
| 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 |
|---|---|
| 819-4-35FCLCW PRIMARY | Weksler Glass Thermometer Corp (USA) |
| Reference | Meaning |
|---|---|
| MIL-I-18997 | 4/1 Identification reference U.S. Government activity |
| G27-80-4-35FCLCW | 5/1 Secondary reference Weksler Glass Thermometer Corp |
NSN 6685-00-977-4381 is a Gage,compound Pressure-Vacuum,di, manufactured by Weksler Glass Thermometer Corp, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-00-977-4381 has 1 manufacturer part number on file: 819-4-35FCLCW (Weksler Glass Thermometer Corp).
Key specifications for 819-4-35FCLCW: Mounting Hole Quantity: 3; Scale Accuracy: 1 PCT ENTIRE RANGE; Scale Name: COMPOUND; Overall Diameter: 5.281 INCHES NOMINAL IN. 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.