The Accumulator,hydraulic, cataloged under National Stock Number 2590-01-170-5026, is classified within Federal Supply Class 2590 (Miscellaneous Vehicular Components) of the Vehicular Equipment Components group. The manufacturer of record is Parker-Hannifin Corporation Div Hydraulic Accumulator Division. Government technical data includes 10 specifications, 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2590-01-170-5026 |
| Primary Part Number | A6N0578D53Q |
| Item Name | Accumulator,hydraulic |
| FSC / FSG | 2590 / 25 — Miscellaneous Vehicular Components |
| Manufacturer | Parker-Hannifin Corporation Div Hydraulic Accumulator Division |
| Status | ACTIVE |
| Bleeder Opening | INCLUDED |
| Maximum Fluid Volume | 578.000 CUBIC INCHES |
| Overall Diameter | 6.750 INCHES NOMINAL IN |
| Cubic Capacity | 613.000 CUBIC INCHES |
| Port Screw Thread Diameter | 0.875 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 | 14.000 |
| Thread Class | 2B |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| A6N0578D53Q PRIMARY | Parker-Hannifin Corporation Div Hydraulic Accumulator Division (USA) |
| Reference | Meaning |
|---|---|
| 13211E8870 | 1/2 Source control — Government-approved source U.S. Government activity |
| A6N0578B53Q | 5/9 Secondary reference Parker Hannifin Corporation Div Hydraulic Accumulator Division |
| A6R0578B53Q | 5/9 Secondary reference Parker Hannifin Corporation Div Hydraulic Accumulator Division |
| A6N0578D53Q | 5/9 Secondary reference Parker Hannifin Corporation Div Hydraulic Accumulator Division |
| A6R0578B53-Q | 5/9 Secondary reference U.S. Government activity |
NSN 2590-01-170-5026 is a Accumulator,hydraulic, manufactured by Parker-Hannifin Corporation Div Hydraulic Accumulator Division, classified under FSC 2590, Miscellaneous Vehicular Components. Status: active.
NSN 2590-01-170-5026 has 1 manufacturer part number on file: A6N0578D53Q (Parker-Hannifin Corporation Div Hydraulic Accumulator Division).
1 possible match (shared part number, not a government interchangeability claim): 2530-01-412-3854. Verify interchangeability with system specifications before substitution.
Key specifications for A6N0578D53Q: Bleeder Opening: INCLUDED; Maximum Fluid Volume: 578.000 CUBIC INCHES; Overall Diameter: 6.750 INCHES NOMINAL IN; Cubic Capacity: 613.000 CUBIC INCHES. 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.
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.