The Gage,differential,dial Indicatin, cataloged under National Stock Number 6685-01-207-0666, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Wallace and Tiernan Canada Inc. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-207-0666 |
| Primary Part Number | 62C-4C-0040 |
| Item Name | Gage,differential,dial Indicatin |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Wallace and Tiernan Canada Inc |
| Status | ACTIVE |
| Scale Accuracy | PORM 2 PCT FULL SCALE |
| Scale Name | DIFFERENTIAL PRESSURE |
| Overall Diameter | 8.500 INCHES NOMINAL IN |
| Actuation Type | CAPSULE |
| Mounting Method | PANEL |
| Scale Inscription/background Color | BLACK MARKINGS ON WHITE BACKGROUND |
| Scale Smallest Increment | 0.2 POUNDS PER SQUARE INCH (PSI) LBS |
| Connection Type | INTERNAL |
| Scale Range | +0.0 TO 40.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Pointer Type | INDICATING |
| Adjustability | ADJUSTABLE |
| Scale Type | SINGLE |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 6 IN. DIA IN |
| Connection Location | BACK, CENTER |
| Pointer Color | BLACK |
| Material | COPPER ALLOY ACTUATING ELEMENT |
| Material | ALUMINUM CASE |
| Connection Quantity | 1 |
| Connection Size | 0.125 IN. NPT DIA IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 62C-4C-0040 PRIMARY | Wallace and Tiernan Canada Inc (CAN) |
| Reference | Meaning |
|---|---|
| X-87873-01 | 5/9 Secondary reference General Regulator Corp. Dba Accudriv |
NSN 6685-01-207-0666 is a Gage,differential,dial Indicatin, manufactured by Wallace and Tiernan Canada Inc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-207-0666 has 1 manufacturer part number on file: 62C-4C-0040 (Wallace and Tiernan Canada Inc).
Key specifications for 62C-4C-0040: Scale Accuracy: PORM 2 PCT FULL SCALE; Scale Name: DIFFERENTIAL PRESSURE; Overall Diameter: 8.500 INCHES NOMINAL IN; Actuation Type: CAPSULE. 20 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.