The Feedback Spring Assembly, cataloged under National Stock Number 6685-00-187-4166, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-00-187-4166 |
| Item Name | Feedback Spring Assembly |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| General Characteristics Item Description | 1 EA P/N 17766,ADJUSTINGSCREW,1 EA P/N 277664,SPRING NUT,1 EA P/M 178675,SLEEVE,2 EA P/N 120171-005,NUT,2EA P/N 220197-008,WASHER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 140977-10 | 5/9 Secondary reference Rosemount Analytical, Inc. Div Process Analytical Division |
| 177667 | 3/9 Design control — primary reference Rosemount Analytical, Inc. Div Process Analytical Division |
NSN 6685-00-187-4166 is a Feedback Spring Assembly, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
Key specifications for 6685-00-187-4166: General Characteristics Item Description: 1 EA P/N 17766,ADJUSTINGSCREW,1 EA P/N 277664,SPRING NUT,1 EA P/M 178675,SLEEVE,2 EA P/N 120171-005,NUT,2EA P/N 220197-008,WASHER. 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.