The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-629-7591, 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 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-629-7591 |
| Primary Part Number | EA24-3PFF-LWBX |
| 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 |
| Scale Name | PRESSURE |
| Overall Diameter | 4.5 INCHES NOMINAL IN |
| Actuation Type | BOURDON TUBE |
| Mounting Connection Location | BOTTOM |
| Mounting Method | THREADED STUD(S) |
| Scale Type | DIAL |
| Connection Location | BOTTOM |
| Material | STEEL CORROSION RESISTING CASE |
| 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 |
|---|---|
| EA24-3PFF-LWBX PRIMARY | Ashcroft Inc Dba Heise (USA) |
| EA24-3PFF-LWBX | Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc (USA) |
NSN 6685-01-629-7591 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 6685-01-629-7591 has 2 manufacturer part numbers on file: EA24-3PFF-LWBX (Ashcroft Inc Dba Heise), EA24-3PFF-LWBX (Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc).
Key specifications for EA24-3PFF-LWBX: Scale Name: PRESSURE; Overall Diameter: 4.5 INCHES NOMINAL IN; Actuation Type: BOURDON TUBE; Mounting Connection Location: BOTTOM. 8 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.