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 5996-00-740-8315
NSN 6220-01-535-0892
NSN 5935-01-418-6348
NSN 6650-01-260-7427
NSN 6130-01-422-2603
NSN 5930-01-418-2909
NSN 7035-00-679-9027
NSN 6320-00-823-2015
NSN 6220-01-417-4394
NSN 5925-00-990-8818
NSN 5905-01-519-4963
NSN 5999-01-358-3501