5330-00-001-4710

5960-99-141-7732 5960991417732 991417732 is an inclosure, including two or more electrodes, in which a flow of electrons may occur through a vacuum or a contained gas. the electronic conduction takes place either by means of electrons emitted from a cathode or by ionization of the contained gas. includes phototubes (photoemissive type only), geiger-mueller tubes, traveling wave tubes, cathode ray tubes and microwave tubes (klystron, magnetron, or the like). excludes items whose primary purpose is to produce light energy. also excludes photoelectric cell; and semiconductor device (as modified).

2990-14-332-8521 2990143328521 143328521 TUBULURE,ADMISSION

2815-14-306-1116 2815143061116 143061116 is a reciprocating internal combustion engine in which the power necessary to produce motion of the mechanism is obtained by igniting a compressed fuel and air mixture within the cylinder or cylinders by extreme heat resulting from compression. the engine consists of a cylinder block assembly complete with cylinder head(s) and oil pan(s). it may include attachments or accessories, such as starter motor, transmission for auxiliary equipment, clutch, oil filter, flywheel, flywheel housing or battery charging generator. a fuel tank is not included. for a complete operating power unit mounted on a base, see power unit (1), diesel.