SHELF CLAMP/Arinc, square, size: 3.175 x 3.175, depth: 7, aluminum, anodized finish, panel mount. 64409B-10564409B-103 3 ATI ARINC Shelf Clamp | 3.175 x 3.175in, 7in DepthMSP avionics clamps eliminate the need for panel removal when repairing or replacing an instrument such as an altimeter or artifi..