The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6150-01-054-3526
NSN 6130-00-543-9360
NSN 5960-00-865-3463
NSN 5910-01-446-6623
NSN 5999-00-350-6052
NSN 4140-00-837-2658
NSN 6110-01-626-0441
NSN 5965-01-367-6483
NSN 6650-01-179-3823
NSN 6650-01-451-0590
NSN 6650-01-623-3078
NSN 5945-01-485-5471