22 C.F.R. § 121.10 Forgings, castings and machined bodies.
Title 22 - Foreign Relations
Articles on the U.S. Munitions List include articles in a partially completed state (such as forgings, castings, extrusions and machined bodies) which have reached a stage in manufacture where they are clearly identifiable as defense articles. If the end-item is an article on the U.S. Munitions List (including components, accessories, attachments and parts as defined in §121.8), then the particular forging, casting, extrusion, machined body, etc., is considered a defense article subject to the controls of this subchapter, except for such items as are in normal commercial use.
Title 22: Foreign Relations
PART 121—THE UNITED STATES MUNITIONS LIST
Enumeration of Articles
§ 121.10 Forgings, castings and machined bodies.