The Gage,compound Pressure-Vacuum-Te, cataloged under National Stock Number 6685-00-813-9641, 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 26 specifications, cited from the U.S. Government catalog. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-00-813-9641 |
| Item Name | Gage,compound Pressure-Vacuum-Te |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Mounting Hole Quantity | 3 |
| Scale Accuracy | 1 PERCENT RATING ABOVE 5 PERCENT OF RANGE SPAN; 1 PERCENT RATING ABOVE 5 PERCENT OF RANGE SPAN; 1 PCT RATING ABOVE 5 PCT OF RANGE SPAN |
| Scale Name | PRESSURE AND VACUUM AND TEMPERATURE |
| Overall Diameter | 4.750 INCHES NOMINAL IN |
| Actuation Type | SINGLE BOURDON TUBE |
| Mounting Method | SURFACE WALL |
| Scale Inscription/background Color | BLACK FIGURES ON WHITE BACKGROUND; BLACK FIGURES ON WHITE BACKGROUND; RED FIGURES ON WHITE BACKGROUND |
| Scale Smallest Increment | 10.0 DEGREES AND 5.0 INCHES AND 5.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 240.0 DEG FAHRENHEIT AND +0.0 TO 30.0 INCHES OF MERCURY AND +0.0 TO 150.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Mounting Hole Diameter | 0.218 INCHES NOMINAL IN |
| Scale Name for Which Pointer Is Designed | PRESSURE-VACUUM AND TEMPERATURE |
| Pointer Type | INDICATING AND REFERENCE |
| Adjustability | NONADJUSTABLE OR ADJUSTABLE |
| Scale Type | MULTIPLE |
| Connector Type Vent | NOT PROVIDED |
| Nondefinitive Spec/std Data | A DESIGN AND A TYPE |
| Dial Size | 3-1/2 IN. DIA IN |
| Graduation Unit | 30.0 DEGREES AND 30.0 INCHES AND 25.0 POUNDS PER SQUARE INCH LBS |
| Bolt Circle Diameter | 4.250 INCHES NOMINAL IN |
| Connection Location | BACK |
| Pointer Color | BLACK AND RED |
| Surface Treatment | ENAMEL CASE |
| Unable to Decode | UNABLE TO DECODE |
| Connection Quantity | 1 |
| Connection Size | 0.250 IN. TUBE 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 |
|---|---|
| MIL-G-18997 | 4/1 Identification reference U.S. Government activity |
| 35-1246PCF33BXWDF012F11 | 5/9 Secondary reference Ashcroft Inc Dba Heise |
| 35-1246PN33BXWDF0-12 | 5/9 Secondary reference Ashcroft Inc Dba Heise |
| SQ23-3FDP-RWBX | 5/1 Secondary reference Weksler Glass Thermometer Corp |
| 6685PL1383650 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 64A122 | 5/1 Secondary reference Ashcroft Inc Dba Heise |
| RC3ND150C1WRANAG | 2/2 Government specification standardization U.S. Government activity |
| FABG72 | 5/1 Secondary reference Ashcroft Inc Dba Heise |
NSN 6685-00-813-9641 is a Gage,compound Pressure-Vacuum-Te, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
Key specifications for 6685-00-813-9641: Mounting Hole Quantity: 3; Scale Accuracy: 1 PERCENT RATING ABOVE 5 PERCENT OF RANGE SPAN; 1 PERCENT RATING ABOVE 5 PERCENT OF RANGE SPAN; 1 PCT RATING ABOVE 5 PCT OF RANGE SPAN; Scale Name: PRESSURE AND VACUUM AND TEMPERATURE; Overall Diameter: 4.750 INCHES NOMINAL IN. 26 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.