The Gage,compound Pressure-Vacuum,di, cataloged under National Stock Number 6685-01-445-6818, 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 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-445-6818 |
| Primary Part Number | AA04-2CB4-LWX9SH |
| 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 Range | +0.0 TO 30.0 INCHES AND +0.0 TO 30.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Material Document and Classification | AISI 316 ASSN STD SINGLE MATERIAL RESPONSE ACTUATING ELEMENT |
| Material | STEEL COMP 316 ACTUATING ELEMENT |
| 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 |
|---|---|
| AA04-2CB4-LWX9SH PRIMARY | Ashcroft Inc Dba Heise (USA) |
| Reference | Meaning |
|---|---|
| AA04-2CB4-LWX91 | C/1 Advisory reference — outside the item-of-supply concept Weksler Glass Thermometer Corp |
| AA04-2CB4-LWX1 | C/1 Advisory reference — outside the item-of-supply concept Weksler Glass Thermometer Corp |
NSN 6685-01-445-6818 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 6685-01-445-6818 has 1 manufacturer part number on file: AA04-2CB4-LWX9SH (Ashcroft Inc Dba Heise).
Key specifications for AA04-2CB4-LWX9SH: Scale Range: +0.0 TO 30.0 INCHES AND +0.0 TO 30.0 POUNDS PRESSURE PER SQUARE INCH LBS; Material Document and Classification: AISI 316 ASSN STD SINGLE MATERIAL RESPONSE ACTUATING ELEMENT; Special Features: NOT SHIPBOARD USE; End Item Identification: STRATEGIC SEALIFT CONV. SHIPS CLASS. 3 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.