The Accumulator,hydraulic, cataloged under National Stock Number 1650-00-640-8487, 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 11 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 1650-00-640-8487 |
| Item Name | Accumulator,hydraulic |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Status | ACTIVE |
| Overall Diameter | 5.500 INCHES NOMINAL IN |
| Cubic Capacity | 400.000 CUBIC INCHES |
| Port Screw Thread Diameter | 1.062 INCHES NOMINAL IN |
| Port Screw Thread Series Designator | UN |
| Shape | CYLINDRICAL |
| Operating Pressure | 3000.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Nondefinitive Spec/std Data | II TYPE AND 3000 CLASS |
| Port Screw Thread Quantity Per Inch | 12.000 |
| Separator Type | PISTON |
| Thread Class | 3B |
| Material | ALUMINUM ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 8407-001 | 5/1 Secondary reference Rg Industries Inc Div Rg Group |
| 100700-7 | 5/9 Secondary reference Bendix Corp the Brake and Steering Div |
| MS28700-7 | 2/2 Government specification standardization U.S. Government activity |
| MILA5498TYPE2CLASS3000 | 4/1 Identification reference U.S. Government activity |
| 100700-7 | 5/9 Secondary reference Bendix Corp the |
| 8427-001 | 5/1 Secondary reference Rg Industries Inc Div Rg Group |
NSN 1650-00-640-8487 is a Accumulator,hydraulic, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6150-01-682-5342. Verify interchangeability with system specifications before substitution.
Key specifications for 1650-00-640-8487: Overall Diameter: 5.500 INCHES NOMINAL IN; Cubic Capacity: 400.000 CUBIC INCHES; Port Screw Thread Diameter: 1.062 INCHES NOMINAL IN; Port Screw Thread Series Designator: UN. 11 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 1650-00-640-8487 has DEMIL Code B. 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.