The Gage,differential,dial Indicatin, cataloged under National Stock Number 6685-01-538-2183, 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 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-538-2183 |
| Item Name | Gage,differential,dial Indicatin |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Scale Accuracy | +/-2 PERCENT |
| Scale Name | DIFFERENTIAL PRESSURE |
| Actuation Type | DIAPHRAGM |
| Mounting Method | FLUSH OR SURFACE |
| Scale Range | +0.0 TO 6.0 INCHES OF WATER IN |
| Scale Type | BROAD ARC DIAL |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 4 INCHES IN |
| Pointer Color | RED |
| Material | RUBBER SILICONE CLASS Q ACTUATING ELEMENT |
| Material | ALUMINUM CASE |
| Connection Quantity | 1 |
| Connection Size | 1/8 NPT |
| 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 |
|---|---|
| 2006D | 3/2 Design control — primary reference U.S. Government activity |
NSN 6685-01-538-2183 is a Gage,differential,dial Indicatin, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
Key specifications for 6685-01-538-2183: Scale Accuracy: +/-2 PERCENT; Scale Name: DIFFERENTIAL PRESSURE; Actuation Type: DIAPHRAGM; Mounting Method: FLUSH OR SURFACE. 13 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.