CLAMP/Rectangle, size: 1.457 x 3.175, depth: 1.5, aluminum, anodized finish, panel mount. 123-3215-G123-3215-G Rectangular Clamp | 1.457 x 3.175in, 1.5in DepthMSP avionics clamps eliminate the need for panel removal when repairing or replacing an instrument such as an altimeter or artificial horizo..