is the active Department of Defense (DoD) test method standard governing mechanical vibrations for naval reciprocating machinery, propulsion systems, and shafting. Formally validated by the Navy's Bureau of Ships (NAVSEA), this standard dictates the exact guidelines required to protect core naval systems from structural fatigue and operational failure. Manufacturers looking to deploy hardware onto active U.S. Navy vessels must master this protocol to secure military qualification. 1. What is MIL-STD-167-2A?
is a specialized defense test method standard managed by the Naval Sea Systems Command (NAVSEA) that governs the evaluation, testing, and acceptance criteria for mechanical vibrations of shipboard equipment. Unlike its counterpart, MIL-STD-167-1A (which covers basic environmental and internally excited vibrations for general shipboard cargo and electronics), Revision 2A specifically focuses on reciprocating machinery, propulsion systems, and shafting components .
Accessing the official MIL-STD-167-2A PDF is straightforward and free through the DoD’s ASSIST QuickSearch portal, making it easier than ever for organizations worldwide to incorporate these critical requirements into their design and testing workflows. mil-std-167-2a pdf
Evaluates the axial forces pushed down the length of the ship's main shaft, driven primarily by propeller wake variations.
MIL-STD-167-2A applies to:
The standard requires rigid mounting to the shaker head. You must use a fixture that replicates the ship’s deck stiffness. Do not use rubber isolators during the test.
Because military standards are public records financed by taxpayers, official copies are generally available for free to the public, provided they do not contain classified distribution restrictions. is the active Department of Defense (DoD) test
: Detailed document history and referenced standards can be viewed on GlobalSpec (Engineering360) .