NSN 1620-01-140-3256 · NIIN 011403256 · Part number 74A410601-1001
The Boeing Company Div Defense · FSC 1620 — Aircraft Landing Gear Components · FSG 16 — Aircraft Components and Accessories · CAGE 76301
Government record, cited
NSN 1620-01-140-3256 — this item is cataloged by the U.S. Government under National Stock Number 1620-01-140-3256. Manufacturer of record part number: 74A410601-1001.
General Characteristics Item Description: TITANIUM ALLOY MIL-T-9047,ALLOY 6AL-6V-2,ANNEALED,COMPOSITION 8,6.420 IN. DIA V
1 manufacturer part number on file
Manufacturer of record: The Boeing Company Div Defense
Identification
NSN: 1620-01-140-3256
NIIN: 011403256
FSC: 1620 — Aircraft Landing Gear Components
FSG: 16 — Aircraft Components and Accessories
Primary part number: 74A410601-1001
Manufacturer: The Boeing Company Div Defense
General Description
The Head Assembly,cylinder, cataloged under National Stock Number 1620-01-140-3256, is classified within Federal Supply Class 1620 (Aircraft Landing Gear Components) of the Aircraft Components and Accessories group. The manufacturer of record is The Boeing Company Div Defense. 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
1620-01-140-3256
Primary Part Number
74A410601-1001
Item Name
Head Assembly,cylinder
FSC / FSG
1620 / 16 — Aircraft Landing Gear Components
Manufacturer
The Boeing Company Div Defense
Status
ACTIVE
General Characteristics Item Description
TITANIUM ALLOY MIL-T-9047,ALLOY 6AL-6V-2,ANNEALED,COMPOSITION 8,6.420 IN. DIA V
Other items in FSC 1620 — Aircraft Landing Gear Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1620-00-001-2466
HOUSING,GEARBOX,KNE
1620-00-001-2467
HOUSING,GEARBOX,KNE
1620-00-001-2468
1620-00-001-2468 · Item name not on file
1620-00-001-3929
LEVER ASSEMBLY
1620-00-001-4483
CYLINDER LANDING GE
1620-00-001-6577
1620-00-001-6577 · Item name not on file
1620-00-001-6942
END PLATE,POWER ST
1620-00-003-0391
DRAG BRACE,LANDING GEAR
Frequently Asked Questions
What is NSN 1620-01-140-3256?
NSN 1620-01-140-3256 is a Head Assembly,cylinder, manufactured by The Boeing Company Div Defense, classified under FSC 1620, Aircraft Landing Gear Components. Status: active.
What part numbers are listed for NSN 1620-01-140-3256?
NSN 1620-01-140-3256 has 1 manufacturer part number on file: 74A410601-1001 (The Boeing Company Div Defense).
What are the specifications of 74A410601-1001?
Key specifications for 74A410601-1001: General Characteristics Item Description: TITANIUM ALLOY MIL-T-9047,ALLOY 6AL-6V-2,ANNEALED,COMPOSITION 8,6.420 IN. DIA V; End Item Identification: AIRCRAFT MODEL F-18. 1 specification is documented in the U.S. Government catalog.
Is NSN 1620-01-140-3256 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
What is the DEMIL code for NSN 1620-01-140-3256?
NSN 1620-01-140-3256 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.