The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-520-9301, 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 23 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-520-9301 |
| 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 | 0.25 PCT FULL SCALE |
| Scale Name | POUNDS PRESSURE |
| Relationship to Similar Equipment | REPLACED BY 5VG90725-107 PER DWG |
| Overall Diameter | 6.000 INCHES NOMINAL IN |
| Actuation Type | SINGLE COIL HELICAL BOURDON TUBE |
| Mounting Method | FLUSH FLANGE |
| Scale Smallest Increment | 2.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Reference Data and Literature | DWG5VG90725 |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 500.0 POUNDS PER SQUARE INCH LBS |
| Mounting Hole Diameter | 0.280 INCHES NOMINAL IN |
| Scale Name for Which Pointer Is Designed | LOW PRESSURE |
| Pointer Type | REFERENCE |
| Adjustability | ADJUSTABLE |
| Specification/standard Data | 81205-5VG90725 MANUFACTURERS SPECIFICATION CONTROL |
| Scale Type | CONCENTRIC DIAL |
| Dial Size | 4.5 INCH DIAMETER IN |
| Bolt Circle Diameter | 5.370 INCHES NOMINAL IN |
| Connection Location | BOTTOM |
| Material | CONSTANTAN IRON ACTUATING ELEMENT |
| Connection Quantity | 1 |
| Connection Size | 0.240 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 |
|---|---|
| 5VG90725-105 | 5/9 Secondary reference 3d Instruments, Lp Dba Sierra Precision |
| 5VG90725-105 | 7/2 Vendor item drawing reference U.S. Government activity |
| 25544-27B11 | 3/9 Design control — primary reference 3d Instruments, Lp Dba Sierra Precision |
NSN 6685-01-520-9301 is a Gage,pressure,dial Indicating, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
Key specifications for 6685-01-520-9301: Mounting Hole Quantity: 3; Scale Accuracy: 0.25 PCT FULL SCALE; Scale Name: POUNDS PRESSURE; Relationship to Similar Equipment: REPLACED BY 5VG90725-107 PER DWG. 23 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.