The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6650-00-791-1637
NSN 5950-01-290-0122
NSN 6620-01-421-3917
NSN 5965-01-505-3716
NSN 5895-01-391-5682
NSN 5945-01-177-8740
NSN 5835-01-214-5402
NSN 5999-00-012-0088
NSN 6135-01-453-3201
NSN 6645-00-674-9728
NSN 5998-00-400-0963
NSN 6610-00-113-4552