4240-14-520-5641

5830-00-170-5277 5830001705277 001705277 is an item which may provide two-way amplified voice communications when connected to one or more like stations directly or via intermediate control equipment; includes loudspeaker (which may be used as a loudspeaker or microphone), signalling devices, amplifier and station selector switches. may include separate microphone, earphone, handset or headset. see also, telephone connecting station.

4710-01-170-5277 4710011705277 011705277 TUBE ASSY

6145-99-170-5277 6145991705277 991705277 is two or more insulated conductors (solid or stranded) contained in a common covering, or two or more insulated conductors twisted or molded together without a common covering, or one insulated conductor with a metallic covering, covering, shield, or outer conductor. the rated working voltage of the item must be 300 volts or more, or in lieu of this the test voltage must be 1,000 volts or more; and the size of each individual conductor must be number 18 american wire gage (0.75 square millimeters) or larger. for cables with uninsulated neutral conductor use the hightest rated voltage. refers to bulk quantities only, for items of definite length with processed ends or terminated in fittings, see cable assembly, power, electrical. for low voltage aircraft and automotive cable, see cable, special purpose, electrical.