The Piston,hydraulic Accumulator, cataloged under National Stock Number 1650-01-503-7494, 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 Tactair Fluid Controls Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-01-503-7494 |
| Primary Part Number | 28401597 |
| Item Name | Piston,hydraulic Accumulator |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Tactair Fluid Controls Inc |
| Status | ACTIVE |
| Overall Diameter | 4.460 INCHES NOMINAL IN |
| 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 |
|---|---|
| 28401597 PRIMARY | Tactair Fluid Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| 28401597 | 3/9 Design control — primary reference U.S. Government activity |
NSN 1650-01-503-7494 is a Piston,hydraulic Accumulator, manufactured by Tactair Fluid Controls Inc, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-503-7494 has 1 manufacturer part number on file: 28401597 (Tactair Fluid Controls Inc).
Key specifications for 28401597: Overall Diameter: 4.460 INCHES NOMINAL IN; Overall Length: 1.450 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: PISTON, LOW PRESSURE; End Item Identification: E-3A AIRCRAFT A. 1 specification is 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 1650-01-503-7494 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.