The Gage,compound Pressure-Vacuum,di, cataloged under National Stock Number 6685-01-184-0739, 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 24 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-184-0739 |
| Item Name | Gage,compound Pressure-Vacuum,di |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Scale Accuracy | PORM 1 PCT FULL RANGE |
| Scale Name | PRESSURE |
| Overall Diameter | 4.312 INCHES NOMINAL IN |
| Actuation Type | BOURDON TUBE |
| Mounting Connection Location | BOTTOM |
| Mounting Method | RIGID STEM |
| Scale Inscription/background Color | BLACK MARKINGS ON WHITE BACKGROUND |
| Scale Smallest Increment | 10.0 INCHES AND 5.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 30.0 INCHES AND +0.0 TO 400.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Pointer Type | INDICATING |
| Adjustability | ADJUSTABLE |
| Scale Type | SINGLE |
| Connector Type Vent | NOT PROVIDED |
| Nondefinitive Spec/std Data | A DESIGN AND C TYPE |
| Dial Size | 4-1/2 IN. DIA IN |
| Graduation Unit | 30.0 INCHES AND 50.0 POUNDS PER SQUARE INCH LBS |
| Connection Location | BOTTOM |
| Pointer Color | BLACK |
| Material | STEEL CORROSION RESISTING CASE |
| Material | PLASTIC PROTECTIVE CRYSTAL |
| Material | NICKEL ALLOY AND COPPER ALLOY ACTUATING ELEMENT |
| 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 |
| MIL-I-18997 | 5/9 Secondary reference U.S. Government activity |
| SC4MC4HCWPONA | 2/2 Government specification standardization U.S. Government activity |
| SCY4MIN | 5/1 Secondary reference Moeller Instrument Company, Inc. Dba Moeller Instrument Co |
NSN 6685-01-184-0739 is a Gage,compound Pressure-Vacuum,di, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
Key specifications for 6685-01-184-0739: Scale Accuracy: PORM 1 PCT FULL RANGE; Scale Name: PRESSURE; Overall Diameter: 4.312 INCHES NOMINAL IN; Actuation Type: BOURDON TUBE. 24 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.