Enclosure assemblies per MIL-E-24142 share many characteristics, with size and shape being the major variables. They are all manufactured of solid brass. All are submersible to a depth of 15 feet. Wall thicknesses for enclosures up to size 6×9 are nominally 1/16". For enclosures from 8×10 through 14×26 the wall thickness is nominally 3/32". The wall thickness on enclosure size 20×24 is nominally 1/8".