A water buoyant item designed to automatically transmit underwater sound waves for the purpose of providing bearing information and generally used as a navigational aid.
Classification: Ship' logs and depth-sounding apparatus for navigation
NSN 5999-01-352-0356
NSN 5960-01-449-1310
NSN 5999-01-463-8641
NSN 5930-01-329-1270
NSN 6220-00-471-8995
NSN 6650-00-492-6072
NSN 6650-01-070-9121
NSN 5998-00-891-9674
NSN 5905-00-982-8764
NSN 7035-01-528-3763
NSN 6150-01-414-6381
NSN 6150-01-647-1510