The Accumulator,hydraulic, cataloged under National Stock Number 1650-00-640-8490, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 1650-00-640-8490 |
| Item Name | Accumulator,hydraulic |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Status | ACTIVE |
| Bleeder Opening | NOT INCLUDED |
| Overall Diameter | 3.810 INCHES NOMINAL IN |
| Cubic Capacity | 216.000 CUBIC INCHES |
| Port Screw Thread Diameter | 0.750 INCHES NOMINAL IN |
| Port Screw Thread Series Designator | UNF |
| Shape | CYLINDRICAL |
| Operating Pressure | 3000.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Port Screw Thread Quantity Per Inch | 16.000 |
| Separator Type | PISTON |
| Thread Class | 3 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Reference | Meaning |
|---|---|
| 08-8425-010 | 5/9 Secondary reference U.S. Government activity |
| 1010530-5 | 5/1 Secondary reference Allied Signal Aerospace Co Garret General Aviation Service Div |
| 1008700-5 | C/1 Advisory reference — outside the item-of-supply concept Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| 08-8425-010 | C/1 Advisory reference — outside the item-of-supply concept Tactair Fluid Controls Inc |
| MS28700-5 | 2/2 Government specification standardization U.S. Government activity |
| 1356-542905 | 5/1 Secondary reference Parker Hannifin Corp Aerospace Group Ground Fueling Div |
| MIL-A-5498 | 4/1 Identification reference U.S. Government activity |
NSN 1650-00-640-8490 is a Accumulator,hydraulic, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
5 possible matches (shared part number, not a government interchangeability claim): 1650-00-843-1245, 1650-00-905-6987, 5365-01-105-1375. Verify interchangeability with system specifications before substitution.
Key specifications for 1650-00-640-8490: Bleeder Opening: NOT INCLUDED; Overall Diameter: 3.810 INCHES NOMINAL IN; Cubic Capacity: 216.000 CUBIC INCHES; Port Screw Thread Diameter: 0.750 INCHES NOMINAL IN. 10 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 1650-00-640-8490 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.