The Cylinder Assembly,actuating,line, cataloged under National Stock Number 1650-01-025-8574, 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 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1650-01-025-8574 |
| Primary Part Number | 6-3877-2 |
| Item Name | Cylinder Assembly,actuating,line |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Tactair Fluid Controls Inc |
| Status | ACTIVE |
| Pressure Rating | 3100.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 3500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Compressed Length | 18.400 INCHES NOMINAL IN |
| Temp Rating | -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF |
| Seat Angle in Deg | UNABLE TO DECODE |
| Piston Rod End Similarity | NOT IDENTICAL |
| Extended Length | 24.600 INCHES NOMINAL IN |
| Design Characteristics | DOUBLE ACTING SINGLE CYLINDER |
| Overall Diameter | 2.000 INCHES MAXIMUM IN |
| Port Thread Series Designator | UNABLE TO DECODE |
| First Piston Rod End Style | UNABLE TO DECODE |
| Body Material | ALUMINUM ALLOY |
| Port Style | UNABLE TO DECODE |
| First End Hole Diameter | UNABLE TO DECODE |
| Bore Diameter | 1.438 INCHES NOMINAL IN |
| Mounting Type and Location | TONGUE CYLINDER HEAD END |
| First End Outside Diameter | UNABLE TO DECODE |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY THE SOURCE CONTROL DWG NO. |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 6-3877-2 | Tactair Fluid Controls Inc (USA) |
| A15HS034-2 | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| 6-3877-2 | 5/9 Secondary reference Tactair Fluid Controls Inc Phoenix Controls Div |
NSN 1650-01-025-8574 is a Cylinder Assembly,actuating,line, manufactured by Tactair Fluid Controls Inc, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-025-8574 has 2 manufacturer part numbers on file: 6-3877-2 (Tactair Fluid Controls Inc), A15HS034-2 (The Boeing Company).
Key specifications for 6-3877-2: Pressure Rating: 3100.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 3500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS; Compressed Length: 18.400 INCHES NOMINAL IN; Temp Rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF; Seat Angle in Deg: UNABLE TO DECODE. 17 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 1650-01-025-8574 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.