The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5945-01-628-5846
NSN 5990-00-097-7642
NSN 5835-01-092-6759
NSN 7035-01-604-9813
NSN 5930-01-531-1872
NSN 5999-00-812-2463
NSN 6620-00-350-5817
NSN 6145-01-557-7055
NSN 6610-01-168-7943
NSN 6130-00-505-1165
NSN 5990-00-003-4464
NSN 6135-01-252-0315