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No specification found for this NSN.
An item designed to inclose the cylinder bore(s) of an engine block to form a combustion chamber(s). It may have liquid cooling passage(s) and/or air cooling fin(s) and may include valve(s), valve guide(s), rocker arm(s), injector tube(s), and the like. It is a component part of an engine, diesel. See also cylinder head, gasoline engine.