The Dampener,fluid Pressure, cataloged under National Stock Number 6685-01-252-3569, 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 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6685-01-252-3569 |
| Primary Part Number | 25-1112SG |
| Item Name | Dampener,fluid Pressure |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | ACTIVE |
| Thread Location | EXTERNAL |
| Threaded Direct Pressure Connection | PROVIDED |
| Fluid Type for Which Designed | AIR AND GAS AND STEAM |
| Thread Size | 1/4 |
| Screw Thread Series Designator | NPT |
| Material | STEEL CORROSION RESISTING |
| Connection Quantity | 1 |
| 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 |
|---|---|
| 25-1112SG PRIMARY | Ashcroft Inc Dba Heise (USA) |
| Reference | Meaning |
|---|---|
| 25-1112SG1/4NPT | 5/9 Secondary reference Ashcroft Inc Dba Heise |
NSN 6685-01-252-3569 is a Dampener,fluid Pressure, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-252-3569 has 1 manufacturer part number on file: 25-1112SG (Ashcroft Inc Dba Heise).
Key specifications for 25-1112SG: Overall Length: 2.125 INCHES NOMINAL IN; Thread Location: EXTERNAL; Threaded Direct Pressure Connection: PROVIDED; Fluid Type for Which Designed: AIR AND GAS AND STEAM. 7 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.