The Bar,u,pump Flange, cataloged under National Stock Number 1650-00-657-8356, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. The manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 1 specification, 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 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 | 1650-00-657-8356 |
| Primary Part Number | 211923 |
| Item Name | Bar,u,pump Flange |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,ZINC PLATE,4.125 IN. SQ,0.234 IN. THK,4 HOLES 0.343 IN DIA IN |
| 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 |
|---|---|
| 211923 PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
NSN 1650-00-657-8356 is a Bar,u,pump Flange, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-657-8356 has 1 manufacturer part number on file: 211923 (Eaton Aerospace, Llc Dba Jackson South).
1 possible match (shared part number, not a government interchangeability claim): 1680-01-596-5663. Verify interchangeability with system specifications before substitution.
Key specifications for 211923: General Characteristics Item Description: STEEL,ZINC PLATE,4.125 IN. SQ,0.234 IN. THK,4 HOLES 0.343 IN DIA IN. 1 specification is 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.