Special Features:

Item c/o support p/n 7974643; housing p/n 7973789; bearin (2) p/n ms17131-13; houses the gunners control handles

Properties:

An item fabricated from a single, internally cored casting, or composed of two or more separate castings, and designed to position and protect bearings, shafts, gears, and/or other components required for a mechanical drive. Includes items having access hole(s) to facilitate machining and assembling of components. It may include the access hole cover plate(s).