The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5935-01-518-8274
NSN 6320-00-149-7570
NSN 5960-00-512-9121
NSN 6240-01-528-1585
NSN 6240-00-027-9931
NSN 5855-01-634-0259
NSN 5935-01-426-7483
NSN 6620-01-023-2938
NSN 6610-01-585-2222
NSN 5920-01-447-8643
NSN 6105-01-444-0795
NSN 6650-01-487-6274