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 6645-01-542-6159
NSN 6220-01-398-7372
NSN 2925-01-430-4206
NSN 6110-01-195-0538
NSN 5915-01-491-5521
NSN 5996-00-143-9377
NSN 4140-00-640-1228
NSN 5935-01-350-3037
NSN 6135-01-440-9412
NSN 6650-01-360-1882
NSN 5965-00-953-0072
NSN 5935-01-451-3935