The Bourdon Tube, cataloged under National Stock Number 6685-00-478-6572, 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 Honeywell Intl Inc Defense Avionics Systems. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Bourdon Tube |
| FSC / FSG | 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments (FSG 66) |
| Manufacturers | Honeywell Intl Inc Defense Avionics Systems (CAGE 55972) |
| Parameter | Value |
|---|---|
| NSN | 6685-00-478-6572 |
| Primary Part Number | 2271052 |
| Item Name | Bourdon Tube |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Honeywell Intl Inc Defense Avionics Systems |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
NSN 6685-00-478-6572 is a Bourdon Tube, manufactured by Honeywell Intl Inc Defense Avionics Systems, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-00-478-6572 has 2 manufacturer part numbers on file: B50 (Honeywell Intl Inc Defense Avionics Systems), 2271052 (Honeywell Intl Inc Defense Avionics Systems).
1 possible match (shared part number, not a government interchangeability claim): 6115-01-530-6418. 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.