The Accumulator,hydraulic, cataloged under National Stock Number 1650-01-043-7540, 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 9 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 1650-01-043-7540 |
| Primary Part Number | 8-8421-030-2 |
| Item Name | Accumulator,hydraulic |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Tactair Fluid Controls Inc |
| Status | ACTIVE |
| Bleeder Opening | NOT INCLUDED |
| Overall Diameter | 2.810 INCHES NOMINAL IN |
| Cubic Capacity | 25.000 CUBIC INCHES |
| Port Screw Thread Diameter | 0.312 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Port Screw Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Shape | CYLINDRICAL |
| Operating Pressure | 3000.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Port Screw Thread Quantity Per Inch | 20.000 AND 16.000 |
| Thread Class | 3B |
| 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 |
|---|---|
| 8-8421-030-2 | Tactair Fluid Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| C7902-2 | 3/2 Design control — primary reference U.S. Government activity |
| 1650PL1612314 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 8-8421-030-2 | 5/9 Secondary reference U.S. Government activity |
NSN 1650-01-043-7540 is a Accumulator,hydraulic, manufactured by Tactair Fluid Controls Inc, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-043-7540 has 1 manufacturer part number on file: 8-8421-030-2 (Tactair Fluid Controls Inc).
1 possible match (shared part number, not a government interchangeability claim): 1650-01-621-6980. Verify interchangeability with system specifications before substitution.
Key specifications for 8-8421-030-2: Bleeder Opening: NOT INCLUDED; Overall Diameter: 2.810 INCHES NOMINAL IN; Cubic Capacity: 25.000 CUBIC INCHES; Port Screw Thread Diameter: 0.312 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN. 9 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 1650-01-043-7540 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.