3ATI X 4 DEEP, CLAMP, LG. SCRClosing bracket elongated hole 64662B-10964662B-109 ARINC Clamp | 3.175 x 3.175in, 4in Depth, Chem-Film AlodineMSP avionics clamps eliminate the need for panel removal when repairing or replacing an instrument such as an altimeter or artificial horizon. These patented ch..