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 5855-01-157-7186
NSN 6645-01-190-0085
NSN 5910-01-386-3191
NSN 5835-01-203-7318
NSN 6110-01-128-1319
NSN 6135-01-420-4070
NSN 7035-01-432-2424
NSN 5990-01-481-8441
NSN 5950-01-440-3147
NSN 6645-00-484-1992
NSN 5990-01-608-3505
NSN 5965-00-275-0491