Here are entered general works on machine parts considered in themselves, not as directly related to complete machines. Works on parts of specific machines are entered under the machine, e.g. Automobiles--Parts. Special kinds of parts not peculiar and limited to specific types of machinery are entered under appropriate headings, e.g. Bolts and nuts; Cams. --subdivisions Parts; Bodies--Parts; Motors--Parts; and Transmission devices, Automatic--Parts under individual land vehicles and types of land vehicles, e.g. Automobiles--Parts; Automobiles--Bodies--Parts; Automobiles--Motors--Parts; and Automobiles--Transmission devices, Automatic--Parts
