The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6685-00-452-6120
NSN 6105-00-639-6857
NSN 2925-01-467-7672
NSN 6145-01-479-9191
NSN 5945-01-085-3445
NSN 5996-01-004-7832
NSN 5999-00-012-5930
NSN 6220-01-357-3672
NSN 5935-01-027-0022
NSN 5945-01-142-2182
NSN 6650-01-348-8268
NSN 5930-01-382-8213