The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 4140-01-143-8132
NSN 6105-01-026-0165
NSN 7035-01-145-5059
NSN 5855-00-879-5849
NSN 6685-00-626-4296
NSN 6135-00-276-7625
NSN 5998-01-246-4483
NSN 5855-00-451-6155
NSN 6610-00-263-3076
NSN 5965-00-034-4249
NSN 5910-01-614-5526
NSN 6150-00-964-7303