The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6110-00-435-8007
NSN 5990-00-834-8446
NSN 6620-01-355-4339
NSN 6110-01-166-3859
NSN 6135-01-395-4114
NSN 5999-01-547-6587
NSN 5975-00-246-4906
NSN 5950-01-418-2398
NSN 5855-00-197-6387
NSN 6135-01-447-3086
NSN 5910-01-551-8720
NSN 5998-00-176-0107