The Stage Assembly, cataloged under National Stock Number 6680-00-021-9818, is classified within Federal Supply Class 6680 (Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Aero International, Llc Dba Ams Engineered Solutions. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-00-021-9818 |
| Primary Part Number | 471944-1 |
| Item Name | Stage Assembly |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Aero International, Llc Dba Ams Engineered Solutions |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 471944-1 | Aero International, Llc Dba Ams Engineered Solutions (USA) |
| Reference | Meaning |
|---|---|
| 471944-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 6680-00-021-9818 is a Stage Assembly, manufactured by Aero International, Llc Dba Ams Engineered Solutions, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-00-021-9818 has 1 manufacturer part number on file: 471944-1 (Aero International, Llc Dba Ams Engineered Solutions).
1 possible match (shared part number, not a government interchangeability claim): 5930-00-479-6869. Verify interchangeability with system specifications before substitution.
Key specifications for 471944-1: End Item Identification: HONEYWELL FUEL QUANTITY INDICATOR. 0 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.