Inavy name is echo depth sounder
All the components and items required to operate an electromechanical echo ranging system specifically designed to provide the dual functions of propagating underwater sound energy and of intercepting and presenting intelligence from the reflected portion of the transmission. Secondary functionsmay include underwater communication, listening, monitoring own ship's noise, mine and torpedo detection, depth sounding and the like. For items specifically designed for depth determination, see sounding set, sonar. See also sound ranging set; communication set, sonar and receiver-transmitter, sonar.
Classification: Parts & accessories for direction finding compasses and other navigational instruments and appliances
NSN 6150-01-157-1590
NSN 5895-00-318-8719
NSN 5835-01-021-9681
NSN 5985-00-884-2918
NSN 6240-01-122-7391
NSN 6135-00-405-1989
NSN 6135-01-296-1860
NSN 6145-00-557-3960
NSN 5950-01-098-1652
NSN 6220-00-983-1415
NSN 5835-01-143-9143
NSN 5910-00-366-6900