40mm M5 Armament Subsystem Gear Cluster Assy
$775.00
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40mm M5 Armament Subsystem Gear Cluster Assy
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This original U.S. military surplus Gear Cluster Assembly (P/N 11014617, NSN 3020-00-755-4897) is a critical drive component from the 40mm M5 Armament Subsystem, one of the most iconic helicopter-mounted weapon systems developed during the Vietnam War era. The M5 system was designed to deliver high volumes of firepower using the 40mm M75 grenade launcher and was most commonly deployed aboard the UH-1B/C/M "Huey" gunships as part of the U.S. Army's growing focus on air mobility and fire support.
The Gear Cluster Assembly was an internal component within the M5's mechanical actuation system. It functioned as part of the electric drive train that powered the turret's azimuth and elevation mechanisms—allowing the gunner to accurately aim and operate the M75 grenade launcher while in flight. This assembly ensured synchronized movement and reliable operation under combat conditions, contributing to the subsystem's reputation for ruggedness and combat effectiveness.
The M5 Armament Subsystem was fielded extensively in Southeast Asia throughout the 1960s and early 1970s. It played a pivotal role in the U.S. Army's air cavalry and air assault tactics by enabling rapid, flexible fire support directly from airborne platforms. Components like this gear cluster were engineered to withstand vibration, dust, and heat within the cramped confines of the helicopter armament subsystem.
Product Specifications:
Condition: New Old Stock (NOS)
Part Number: 11014617
NSN: 3020-00-755-4897
Subsystem: 40mm M5 Armament Subsystem
Function: Internal gear cluster for the turret drive mechanism
Compatibility: UH-1 series helicopters equipped with M5 turreted grenade launcher systems
Historical Significance:
The M5 Armament Subsystem, with its M75 launcher, provided close-range area suppression during air assaults, troop insertions, and convoy escorts. Its introduction marked a shift in aerial fire support tactics and made a lasting impact on rotary-wing combat doctrine. Owning this original gear cluster assembly offers collectors and restorers a rare opportunity to preserve or display a functional piece of Vietnam War-era armament history.
Ideal For:
– Restoration of M5 grenade launcher turrets
– UH-1 gunship historical displays
– Military museum collections
– Cold War aviation and weapons system collectors
– Technical study and reproduction projects
Add this genuine 40mm M5 Armament Subsystem Gear Cluster Assembly to your collection or inventory and own a tangible part of helicopter-borne firepower history.
Approx length 4", Approx width 4", Approx height .5", Approx weight 1.2lbs.
Pictures are stock images of our inventory. Unless otherwise noted, you will not be receiving the exact item shown in the pictures. The pictures are representative of the item's general condition. The item you receive might be slightly better, or worse, condition than was shown in the pictures.
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