Special Features:

Bolted to bracket; base sonar hydrophone 1, hub diaphragm 1, stop diaphragm 1, shell sonar hydrophone 1, diaphragm sonar hydrophone 1, cable assembly-special purpose elect. 1, washer spring tension 1, pin straight headed 1, setscrew 1, ring retaining 1, packing preformed 1, spring wire 1, pin spring 1, lock washer 1, screw cap socket head 1; four 3/8-16 unc-2b thd holes equally spaced on 2.750 in. Diameter circle

Properties:

Two or more different types of items having a common mounting or mounted on each other which together form a portion of a hydrophone but which in itself is not a complete functioning item and cannot be assigned a more definite item name.