The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6240-00-710-2742
NSN 5905-00-118-7994
NSN 6110-01-299-2613
NSN 5975-01-264-8709
NSN 6135-01-592-4139
NSN 2925-00-265-7539
NSN 6220-01-562-3819
NSN 5975-01-098-6047
NSN 6650-01-481-8009
NSN 5950-00-722-4138
NSN 6685-00-338-4687
NSN 6220-01-600-0257