CLAMP/Arinc, size: 3 depth: 4, aluminum, chem-film (alodine) finish. 64662B-10364662B-103 ARINC Clamp | 3in, 4in Depth, Chem-Film Alodine FinishMSP avionics clamps eliminate the need for panel removal when repairing or replacing an instrument such as an altimeter or artificial horizon. These patente..