The Accumulator,hydraulic, cataloged under National Stock Number 1650-01-264-6334, 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 Pall Aeropower Corporation. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-01-264-6334 |
| Primary Part Number | AD-A620-1D340 |
| Item Name | Accumulator,hydraulic |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Pall Aeropower Corporation |
| Status | ACTIVE |
| Bleeder Opening | NOT INCLUDED |
| Overall Diameter | 3.000 INCHES NOMINAL IN |
| Port Screw Thread Diameter | 2.625 INCHES NOMINAL IN |
| Port Screw Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Shape | CYLINDRICAL |
| Port Screw Thread Quantity Per Inch | 12.000 |
| Thread Class | 3B |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY SOURCE CONTROL DWG NO. 145HS656-2 |
| 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 |
|---|---|
| 145HS656-2C | The Boeing Company (USA) |
| AD-A620-1D340 | Pall Aeropower Corporation (USA) |
| 145HS656-2 | The Boeing Company (USA) |
NSN 1650-01-264-6334 is a Accumulator,hydraulic, manufactured by Pall Aeropower Corporation, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-264-6334 has 3 manufacturer part numbers on file: 145HS656-2C (The Boeing Company), AD-A620-1D340 (Pall Aeropower Corporation), 145HS656-2 (The Boeing Company).
2 possible matches (shared part number, not a government interchangeability claim): 1650-01-289-4686, 1650-01-320-1197. Verify interchangeability with system specifications before substitution.
Key specifications for AD-A620-1D340: Bleeder Opening: NOT INCLUDED; Overall Diameter: 3.000 INCHES NOMINAL IN; Port Screw Thread Diameter: 2.625 INCHES NOMINAL IN; Port Screw Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF). 8 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.
NSN 1650-01-264-6334 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.