The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5965-01-411-1856
NSN 5915-00-491-9262
NSN 5905-00-019-8440
NSN 6620-01-317-7849
NSN 5999-01-468-7627
NSN 5930-01-501-9216
NSN 6145-01-199-6292
NSN 6220-00-558-2147
NSN 5910-01-387-9488
NSN 2925-01-127-0167
NSN 4140-00-618-0530
NSN 6610-01-099-9710