This original new old stock Washer Key is a rare small parts component linked to the legendary M4 Sherman tank—America's primary medium tank of World War II and the early Cold War. Identified by Part Number 5384339 and National Stock Number (NSN) 5310-00-538-4339, this washer key was one of many essential components used throughout the vehicle's complex mechanical systems. While the exact application within the tank is currently unknown, such precision-machined parts were typically used in the turret, drivetrain, or gun mount assemblies where secure fastening and rotational control were critical.

The M4 Sherman was a mechanical marvel of its time, known for its ease of manufacture, reliability in combat, and global deployment across nearly every WWII battlefield. This washer key is a small but significant reminder of the thousands of mechanical interdependencies that allowed the Sherman to function as a dependable armored fighting vehicle in demanding combat environments.

Product Specifications:

Condition: New Old Stock (NOS)
Part Number: 5384339
NSN: 5310-00-538-4339
Application: Believed to be a mechanical element within the M4 Sherman tank; precise location unknown
Finish: As received from original military depot storage, may show light preservative coating or cosmoline

Historical Significance:

The M4 Sherman was a foundational armored vehicle for Allied forces during World War II, with over 49,000 produced. Every component—down to the smallest washer —was designed with rugged reliability in mind. Whether this washer key was used in a gun traverse system, suspension component, or powertrain assembly, it represents the extraordinary engineering detail behind America's iconic war tank.

Ideal For:

WWII armor restoration projects
Collectors of M4 Sherman tank parts
Military vehicle museums and static display construction
Historical vehicle maintenance inventories
Educational institutions focused on military engineering

Approx length 2.5", Approx width 2.5", Approx height .01", Approx weight .1lbs.

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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