The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-083-3686, 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 Ashcroft Inc Dba Heise. Government technical data includes 29 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6685-01-083-3686 |
| Primary Part Number | 45-1379S-02L-0-30 |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | ACTIVE |
| Mounting Hole Quantity | 1 |
| Scale Accuracy | PORM 0.5 PCT. OF SPAN |
| Scale Name | PRESSURE |
| Overall Diameter | 5.8125 INCHES NOMINAL IN |
| Actuation Type | BOURDON TUBE |
| Mounting Connection Location | UPPER LEFT RIGHT SIDE |
| Mounting Method | PANEL FLANGE |
| Scale Inscription/background Color | BLACK MARKINGS ON WHITE BACKGROUND |
| Scale Smallest Increment | 0.5 POUNDS PER SQUARE INCH (PSI) LBS |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 30.0 POUNDS PER SQUARE INCH LBS |
| Material Document and Classification | AISI 316 ASSN STD SINGLE MATERIAL RESPONSE ACTUATING ELEMENT |
| Mounting Hole Diameter | 0.218 INCHES NOMINAL IN |
| Pointer Type | INDICATING |
| Adjustability | ADJUSTABLE |
| Scale Type | DIAL |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 4-1/2 IN. DIA IN |
| Graduation Unit | 5.0 POUNDS PER SQUARE INCH LBS |
| Bolt Circle Diameter | 5.375 INCHES NOMINAL IN |
| Connection Location | LOWER |
| Color | BLACK CASE |
| Pointer Color | BLACK |
| Surface Treatment | ENAMEL CASE |
| Material | GLASS PROTECTIVE CRYSTAL |
| Material | STEEL COMP 316 ACTUATING ELEMENT |
| Material | ALUMINUM AND ALUMINUM ALLOY CASE |
| Connection Quantity | 1 |
| Bezel Type | THREAD |
| 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 |
|---|---|
| 45-1379S-02L-0-30 PRIMARY | Ashcroft Inc Dba Heise (USA) |
| Reference | Meaning |
|---|---|
| 1379/4 1/2IN/S/LOWER 1/4NPT/0-30 | 5/1 Secondary reference Ashcroft Inc Dba Heise |
NSN 6685-01-083-3686 is a Gage,pressure,dial Indicating, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-083-3686 has 1 manufacturer part number on file: 45-1379S-02L-0-30 (Ashcroft Inc Dba Heise).
Key specifications for 45-1379S-02L-0-30: Mounting Hole Quantity: 1; Scale Accuracy: PORM 0.5 PCT. OF SPAN; Scale Name: PRESSURE; Overall Diameter: 5.8125 INCHES NOMINAL IN. 29 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.