The Cylinder Assembly,actuating,line, cataloged under National Stock Number 3040-01-443-6866, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 20 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-443-6866 |
| Primary Part Number | 6066354 CYL NO. C-3 |
| Item Name | Cylinder Assembly,actuating,line |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| First Piston Rod End Thread Class | 1A A |
| Mounting Facility Diameter | 1.001 INCHES NOMINAL IN |
| Pressure Rating | 1320.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Design Characteristics | DOUBLE ACTING SINGLE CYLINDER |
| Port Thread Series Designator | UN |
| First Piston Rod End Thread Quantity Per Inch | 14 |
| First End External Thread Length | 1.625 INCHES NOMINAL IN |
| Mounting Facility Length | 1.500 INCHES NOMINAL IN |
| First Piston Rod End Style | EXTERNAL THREADED |
| Port Thread Class | 2B |
| Port Thread Quantity Per Inch | 12 |
| Body Material | STEEL |
| Port Thread Diameter | 1.062 INCHES NOMINAL IN |
| Port Style | GASKET SEAL |
| First Piston Rod End Thread Series Designator | UNF |
| Mounting Provision for Which Designed | PIN(S) |
| Integral Valve Operation Method | HYDRAULIC |
| Bore Diameter | 3.250 INCHES NOMINAL IN |
| First Piston Rod End Thread Diameter | 1.000 INCHES NOMINAL IN |
| First End Outside Diameter | 1.375 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6066354 CYL NO. C-3 PRIMARY | Naval Sea Systems Command (USA) |
| 6066229 ITEM NO. C-3 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6066229 | D/9 Drawing number reference only Naval Sea Systems Command |
| 6066354 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-443-6866 is a Cylinder Assembly,actuating,line, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-443-6866 has 2 manufacturer part numbers on file: 6066354 CYL NO. C-3 (Naval Sea Systems Command), 6066229 ITEM NO. C-3 (Naval Sea Systems Command).
Key specifications for 6066354 CYL NO. C-3: First Piston Rod End Thread Class: 1A A; Mounting Facility Diameter: 1.001 INCHES NOMINAL IN; Pressure Rating: 1320.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Design Characteristics: DOUBLE ACTING SINGLE CYLINDER. 20 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.