The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5965-01-013-0290
NSN 6145-01-416-7386
NSN 5950-00-339-2816
NSN 6135-01-588-4160
NSN 5985-01-141-4322
NSN 5998-01-607-2906
NSN 5945-01-415-5087
NSN 5990-01-612-5323
NSN 5910-00-018-9417
NSN 5975-01-555-1527
NSN 6135-01-418-4156
NSN 6610-01-382-7894