The Gage,compound Pressure-Vacuum,di, cataloged under National Stock Number 6685-01-658-7907, 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 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6685-01-658-7907 |
| Primary Part Number | 451259SD04L30IMV&15 |
| Item Name | Gage,compound Pressure-Vacuum,di |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | ACTIVE |
| Scale Name | POUNDS PRESSURE |
| Overall Diameter | 5.81 INCHES NOMINAL IN |
| Actuation Type | BOURDON TUBE |
| Scale Inscription/background Color | WHITE BACKGROUND BLACK SCALE |
| Scale Smallest Increment | 1.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 30.0 POUNDS PER SQUARE INCH LBS |
| Adjustability | ADJUSTABLE |
| Scale Type | ARC |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 4.5 INCH IN |
| Graduation Unit | 2.0 POUNDS PER SQUARE INCH LBS |
| Connection Location | BOTTOM |
| Pointer Color | BLACK |
| Material | PLASTIC CASE |
| Material | GLASS PROTECTIVE CRYSTAL |
| Material | STEEL COMP 316 ACTUATING ELEMENT |
| Connection Quantity | 1 |
| Connection Size | 1/2 NPT MALE |
| 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 |
|---|---|
| 451259SD04L30IMV&15 PRIMARY | Ashcroft Inc Dba Heise (USA) |
| Reference | Meaning |
|---|---|
| 45-1259-S-04L-30/15 | 5/9 Secondary reference Ashcroft Inc Dba Heise |
NSN 6685-01-658-7907 is a Gage,compound Pressure-Vacuum,di, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-658-7907 has 1 manufacturer part number on file: 451259SD04L30IMV&15 (Ashcroft Inc Dba Heise).
Key specifications for 451259SD04L30IMV&15: Overall Height: 5.19 INCHES NOMINAL IN; Scale Name: POUNDS PRESSURE; Overall Diameter: 5.81 INCHES NOMINAL IN; Actuation Type: BOURDON TUBE. 19 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.