The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5915-01-633-9845
NSN 6610-01-277-6333
NSN 5835-01-571-4083
NSN 5915-00-542-2179
NSN 6130-01-504-9342
NSN 5855-01-258-6180
NSN 7035-01-132-7209
NSN 6110-01-011-8083
NSN 6130-01-117-4897
NSN 6320-00-456-0836
NSN 6110-01-604-4144
NSN 6130-01-534-6634