The Gage,differential,dial Indicatin, cataloged under National Stock Number 6685-01-534-8535, 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 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6685-01-534-8535 |
| Item Name | Gage,differential,dial Indicatin |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Mounting Hole Quantity | 1 |
| Scale Accuracy | PORM 2 PCT FULL SCALE |
| Scale Name | INCHES OF WATER |
| Relationship to Similar Equipment | THIS IS LOW PRESSURE (LH) VERSION OF 6685-01-247-8432 |
| Overall Diameter | 4.000 INCHES NOMINAL IN |
| Scale Range | +0.0 TO 5.0 INCHES IN |
| Mounting Hole Diameter | 4.563 INCHES NOMINAL IN |
| Pointer Type | INDICATING |
| Scale Type | DIAL |
| Dial Size | 4.0 INCHES IN |
| Surface Treatment | ENAMEL CASE |
| Unable to Decode | UNABLE TO DECODE |
| Material | ALUMINUM CASE |
| Usage Design | INDICATE LOW AIR OR NON-CORROSIVE GAS PRESSURES |
| Connection Size | PROCESS CONNECTIONS 1/8 INCH FEMALE NPTDUPLICATE HIGH AND LOW PRESSURE TAPS 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 |
|---|---|
| 2005-LT | 3/2 Design control — primary reference U.S. Government activity |
NSN 6685-01-534-8535 is a Gage,differential,dial Indicatin, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
Key specifications for 6685-01-534-8535: Mounting Hole Quantity: 1; Scale Accuracy: PORM 2 PCT FULL SCALE; Scale Name: INCHES OF WATER; Relationship to Similar Equipment: THIS IS LOW PRESSURE (LH) VERSION OF 6685-01-247-8432. 15 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.