The Cylinder Assembly,actuating,line, cataloged under National Stock Number 3040-01-107-6920, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 11 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-107-6920 |
| Primary Part Number | 74A450953-1001 |
| Item Name | Cylinder Assembly,actuating,line |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| FSC Application Data | ACFT LANDING GEAR |
| Center to Center Distance Between Mounting Provisions | 2.500 INCHES NOMINAL IN |
| Compressed Length | 4.227 INCHES NOMINAL IN |
| Seat Angle in Deg | UNABLE TO DECODE |
| Extended Length | 7.890 INCHES NOMINAL IN |
| Design Characteristics | SINGLE ACTING SINGLE CYLINDER |
| Port Thread Series Designator | UNABLE TO DECODE |
| Mounting Facility Length | 3.140 INCHES NOMINAL IN |
| Mounting Provision Arrangement Style | TWO HOLE |
| Material Document and Classification | MIL-S-8844, CL 1, COND E2 MIL SPEC SINGLE MATERIAL RESPONSE |
| Port Thread Class | UNABLE TO DECODE |
| Port Thread Quantity Per Inch | UNABLE TO DECODE |
| Port Thread Diameter | UNABLE TO DECODE |
| Port Style | UNABLE TO DECODE |
| Mounting Provision for Which Designed | UNTHREADED MOUNTING HOLES |
| Bore Diameter | 1.188 INCHES NOMINAL IN |
| Material | UNABLE TO DECODE |
| Mounting Type and Location | FLANGE CENTER SECTION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 74A450953-1001 | Hdi Landing Gear Usa Inc (USA) |
| 74A450953-1001 | Israel Aerospace Industries Ltd.shl-Aero Assemblies Division (ISR) |
| 74A450953-1001 | Nassau Tool Works, Inc (USA) |
| 74A450953-1001 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 74A450953-1001 | 5/9 Secondary reference Safran Landing Systems Canada Inc. |
| 74A450953-1001 | 5/9 Secondary reference Goodrich Corporation Div Advanced Structures Landing Systems |
| 74A450953-1001 | 5/9 Secondary reference Goodrich Corp Dba Goodrich Corp |
| 74A450953-1001 | 5/9 Secondary reference Circor Aerospace, Inc. Dba Circor Aerospace Machining Center |
| 74A450953-1001 | 5/9 Secondary reference Heroux-Devtek Inc |
| 10106756 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 74A450953-1001 | 5/9 Secondary reference Circor Aerospace, Inc. Div Circor |
| 74A450953-1001 | 5/9 Secondary reference All Tools, Inc. Dba E2 Precision Products |
| 74A450953-1001 | 5/9 Secondary reference Blair Industries Inc |
| 74A450953-1001 | 5/9 Secondary reference Israel Aerospace Industries Ltd. Shl - Aero Assemblies Division |
| 74A450953-1001 | 5/2 Secondary reference U.S. Government activity |
NSN 3040-01-107-6920 is a Cylinder Assembly,actuating,line, manufactured by The Boeing Company Div Defense, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-107-6920 has 4 manufacturer part numbers on file: 74A450953-1001 (Hdi Landing Gear Usa Inc), 74A450953-1001 (Israel Aerospace Industries Ltd.shl-Aero Assemblies Division), 74A450953-1001 (Nassau Tool Works, Inc), 74A450953-1001 (The Boeing Company Div Defense).
Key specifications for 74A450953-1001: FSC Application Data: ACFT LANDING GEAR; Center to Center Distance Between Mounting Provisions: 2.500 INCHES NOMINAL IN; Compressed Length: 4.227 INCHES NOMINAL IN; Seat Angle in Deg: UNABLE TO DECODE. 18 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 3040-01-107-6920 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.