The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5985-01-254-4081
NSN 6105-01-422-3161
NSN 5855-01-392-3734
NSN 5905-00-339-2837
NSN 5996-01-167-8914
NSN 4140-01-504-3210
NSN 5945-00-025-7843
NSN 6620-00-170-5296
NSN 5985-01-227-7373
NSN 6150-01-271-3879
NSN 5935-01-352-6336
NSN 6150-01-502-3340