The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5905-01-417-8369
NSN 2925-01-254-3068
NSN 5996-01-419-1201
NSN 5925-01-141-9097
NSN 6150-00-516-8445
NSN 5985-01-469-3368
NSN 6150-01-617-2429
NSN 5950-01-062-2052
NSN 5945-00-265-1762
NSN 6145-01-207-0445
NSN 5985-01-556-8013
NSN 5960-01-170-4057