The Dampener,fluid Pressure, cataloged under National Stock Number 6685-01-075-6971, 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 Sioux Corporation Dba Sioux Corp. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Dampener,fluid Pressure |
| FSC / FSG | 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments (FSG 66) |
| Manufacturers | Sioux Corporation Dba Sioux Corp (CAGE 15579) |
| Parameter | Value |
|---|---|
| NSN | 6685-01-075-6971 |
| Primary Part Number | FT00780 |
| Item Name | Dampener,fluid Pressure |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Sioux Corporation Dba Sioux Corp |
| Status | ACTIVE |
| 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 |
|---|---|
| FT00780 PRIMARY | Sioux Corporation Dba Sioux Corp (USA) |
| Reference | Meaning |
|---|---|
| 3K2 | 5/9 Secondary reference Sioux Corporation Dba Sioux Corp |
| 3K13 | 5/9 Secondary reference Sioux Corporation Dba Sioux Corp |
NSN 6685-01-075-6971 is a Dampener,fluid Pressure, manufactured by Sioux Corporation Dba Sioux Corp, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-075-6971 has 1 manufacturer part number on file: FT00780 (Sioux Corporation Dba Sioux Corp).
2 possible matches (shared part number, not a government interchangeability claim): 4320-01-195-4414, 5915-01-205-7498. Verify interchangeability with system specifications before substitution.
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.