The Arm,valve, cataloged under National Stock Number 1650-00-657-5239, 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 United Aeronautical Corporation Dba United Aeronautical Corp. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-00-657-5239 |
| Primary Part Number | 4673993 |
| Item Name | Arm,valve |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | United Aeronautical Corporation Dba United Aeronautical Corp |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY,QQ-A-355 TEMPER-T4,FURNISHED WITH TWO BEARINGS P/N AN200KS3 |
| 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 |
|---|---|
| 4673993 PRIMARY | United Aeronautical Corporation Dba United Aeronautical Corp (USA) |
| Reference | Meaning |
|---|---|
| 4673993 | 5/9 Secondary reference Consolidated Aeronautics Corp |
| 4673993 | 5/9 Secondary reference The Boeing Company |
| 4673993 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1650-00-657-5239 is a Arm,valve, manufactured by United Aeronautical Corporation Dba United Aeronautical Corp, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-657-5239 has 1 manufacturer part number on file: 4673993 (United Aeronautical Corporation Dba United Aeronautical Corp).
Key specifications for 4673993: General Characteristics Item Description: ALUMINUM ALLOY,QQ-A-355 TEMPER-T4,FURNISHED WITH TWO BEARINGS P/N AN200KS3. 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.