The Dampener,fluid Pressure, cataloged under National Stock Number 6685-00-446-4031, 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 Us Army Aviation and Missile Command. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6685-00-446-4031 |
| Primary Part Number | 9172489 |
| Item Name | Dampener,fluid Pressure |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| FSC Application Data | FILTER UNIT,FLUID,PRESSURE |
| Removable Piston | NOT PROVIDED |
| Operating Pressure Range | +0.0 TO 20000.0 POUNDS PER SQUARE INCH LBS |
| Nominal Pipe Size Designation | 0.250 INCHES IN |
| Tube Connection Type | FLARELESS |
| Thread Location | INTERNAL AND EXTERNAL |
| Threaded Direct Pressure Connection | PROVIDED |
| Fluid Type for Which Designed | AIR |
| Thread Size | 1/4-18 |
| Screw Thread Series Designator | NPT |
| Thread Class | 2A AND 2B A |
| Material | STEEL CORROSION RESISTING |
| Connection Quantity | 2 |
| 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 |
|---|---|
| 9172489 | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 255G | 3/2 Design control — primary reference U.S. Government activity |
NSN 6685-00-446-4031 is a Dampener,fluid Pressure, manufactured by Us Army Aviation and Missile Command, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-00-446-4031 has 1 manufacturer part number on file: 9172489 (Us Army Aviation and Missile Command).
Key specifications for 9172489: FSC Application Data: FILTER UNIT,FLUID,PRESSURE; Removable Piston: NOT PROVIDED; Operating Pressure Range: +0.0 TO 20000.0 POUNDS PER SQUARE INCH LBS; Nominal Pipe Size Designation: 0.250 INCHES IN. 13 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.