The Piston,hydraulic Accumulator, cataloged under National Stock Number 1650-00-031-5400, 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. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Piston,hydraulic Accumulator |
| FSC / FSG | 1650 — Aircraft Hydraulic, Vacuum, and De-icing System Components (FSG 16) |
| Manufacturers | Smuck Enterprises Inc. Dba Deltron Engineering (CAGE 3Z414); United Aeronautical Corporation Dba United Aeronautical Corp (CAGE 0EUD7) |
| Parameter | Value |
|---|---|
| NSN | 1650-00-031-5400 |
| Primary Part Number | 3437256-501 |
| Item Name | Piston,hydraulic Accumulator |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | United Aeronautical Corporation Dba United Aeronautical Corp |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3437256-501 | Smuck Enterprises Inc. Dba Deltron Engineering (USA) |
| 3437256-501 PRIMARY | United Aeronautical Corporation Dba United Aeronautical Corp (USA) |
| Reference | Meaning |
|---|---|
| 3437256-501 | 5/9 Secondary reference The Boeing Company |
| 3437256 | D/9 Drawing number reference only U.S. Government activity |
| 3437256-501 | 5/9 Secondary reference Consolidated Aeronautics Corp |
| 3437256-501 | 5/2 Secondary reference U.S. Government activity |
NSN 1650-00-031-5400 is a Piston,hydraulic Accumulator, manufactured by United Aeronautical Corporation Dba United Aeronautical Corp, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-031-5400 has 2 manufacturer part numbers on file: 3437256-501 (Smuck Enterprises Inc. Dba Deltron Engineering), 3437256-501 (United Aeronautical Corporation Dba United Aeronautical Corp).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1650-00-031-5400 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.