The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-445-6979, 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 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6685-01-445-6979 |
| Primary Part Number | AA04-2PF4-LWX9SH |
| 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 Range | +0.0 TO 100.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| 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 |
|---|---|
| AA04-2PF4-LWX9SH PRIMARY | Ashcroft Inc Dba Heise (USA) |
| Reference | Meaning |
|---|---|
| AA04-2PF4-LWX91 | C/1 Advisory reference — outside the item-of-supply concept Weksler Glass Thermometer Corp |
NSN 6685-01-445-6979 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 6685-01-445-6979 has 1 manufacturer part number on file: AA04-2PF4-LWX9SH (Ashcroft Inc Dba Heise).
Key specifications for AA04-2PF4-LWX9SH: Scale Range: +0.0 TO 100.0 POUNDS PRESSURE PER SQUARE INCH LBS; Special Features: NOT FOR SHIPBOARD USE; End Item Identification: STRATEGIC SEALIFT CONV.SHIPS CLASS. 1 specification is 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.