The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6110-00-997-2603
NSN 5975-00-162-9530
NSN 5996-01-059-6141
NSN 5910-01-361-9106
NSN 6320-01-176-8367
NSN 5910-01-063-1746
NSN 6150-01-003-1054
NSN 6130-01-280-3013
NSN 5965-01-408-4190
NSN 5950-01-281-6568
NSN 5965-01-553-6689
NSN 2925-00-284-1534