The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5985-01-315-4083
NSN 5855-01-341-2518
NSN 6150-00-509-0534
NSN 5935-00-597-5055
NSN 5965-01-227-4517
NSN 2925-01-589-4880
NSN 5910-01-074-3412
NSN 5985-01-307-6291
NSN 5990-01-357-6175
NSN 5996-00-849-7532
NSN 2925-01-398-4312
NSN 6240-00-677-0305