5340-14-457-2041

5999-01-504-5512 5999015045512 015045512 is an item fabricated from electrically nonconductive material specifically designed to provide a support for mounting an electrical and/or an electronic component such as a semiconductor device, relay, or resistor into the next higher assembly. it isolates the component from the mounting surface of the next higher assembly, it may act as a strain relief to avoid damage to the component seal, and it may permit soldering of the component to the next higher assembly without damage. it includes holes, notches, or other provisions for physical alignment and spacing of electrical leads and/or other mounting facilities projecting from the component it mounts. it may also afford protection from shock or vibration. it may be either nonthermally conductive which protects the component from temperature changes in the next higher assembly or it may be thermally conductive which permits heat generated in the component to be drained out to a heat sink. for items whose function is electrical insulation only, see insulator, (as modified). excludes holder, (as modified); retainer, (as modified), and spacer, plate.

4710-00-504-5512 4710005045512 005045512 TUBE ASSEMBLY,METAL

3455-14-504-5512 3455145045512 145045512 is a rotary end cutting tool with integral cutting edges of two or more replaceable tool bits, a pilot, pilot drill, or spring-loaded centering pin and either a straight or tapered shank which fits into power machines or portable power tools. it is used to cut accurate holes in materials such as light and heavy gage sheet or plate metal, plastics, cork, rubber, and paper.

5985-99-192-6288 5985991926288 991926288 is an item consisting of one or more definite lengths of straight or formed, flexible or rigid, prefabricated hollow tubing of conductive material. the tubing has a predetermined cross section and is designed to guide or conduct high frequency electromagnetic energy through its interior. one or more ends are terminated. may include common mounting of a switch, wave guide, a dummy load, electrical and other components such as waveguide section, cable terminal chamber and the like. excludes coupler, rotary, radio frequency; coupler, directional; adapter, waveguide; and tuner, waveguide.