The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-157-5534, 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. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments (FSG 66) |
| Manufacturers | Ashcroft Inc Dba Heise (CAGE 049X3) |
| Parameter | Value |
|---|---|
| NSN | 6685-01-157-5534 |
| Primary Part Number | AA14-6PM4-RWXX |
| 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 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| AA14-6PM4-RWXX | Ashcroft Inc Dba Heise (USA) |
| Reference | Meaning |
|---|---|
| 1903-600-1/4 | 5/9 Secondary reference Instrument Tech Corp. Dba Instrument Tech Corp |
| 8222457-1 | 5/9 Secondary reference U.S. Government activity |
| 500XB | 3/9 Design control — primary reference H O Trerice Co |
| 500XB,4 1/2-0/600 | 5/9 Secondary reference H O Trerice Co |
| A047901005 | 5/9 Secondary reference Zwick Energy Researach Organization Inc |
NSN 6685-01-157-5534 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 6685-01-157-5534 has 1 manufacturer part number on file: AA14-6PM4-RWXX (Ashcroft Inc Dba Heise).
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.