The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5996-01-633-7979
NSN 6145-01-190-8971
NSN 6110-01-150-5025
NSN 6320-01-562-1599
NSN 5998-01-180-4713
NSN 6645-01-437-9017
NSN 5910-01-311-2495
NSN 7035-01-593-8058
NSN 6220-00-557-4114
NSN 5999-01-478-8693
NSN 6105-01-618-7307
NSN 5960-01-543-0235