Genuine Aircraft Hardware Co. All original Text, Tables, and Drawings are Copyright 1994-2010 reproduction by permission only. NAS1832 thru NAS1836, Inserts For Composite or Honeycomb Panel Fastening These NAS1832 thru NAS1836, Potted in Inserts are the standard for fastening in composite or honeycomb panels. The panel is first prepared by drilling or routing a hole or holes in the panel as necessary, depending on whether or not the insert is a through hole insert or a closed end insert. Aft.