An item which is part of a sonar dome or sonar transducer and which is so constructed as to afford little attenuation to sonar frequencies while aiding to cut down the water resistance of the part with which it is used.
Classification: Ship' logs and depth-sounding apparatus for navigation
NSN 6105-01-138-4894
NSN 6685-01-215-1204
NSN 5945-01-567-7729
NSN 5910-01-543-3751
NSN 5965-01-106-1431
NSN 5975-01-574-2802
NSN 5960-01-361-6543
NSN 5920-01-437-5916
NSN 5910-01-198-8303
NSN 5960-01-048-8228
NSN 6135-01-079-7852
NSN 6135-01-449-2144