The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5935-00-267-2978
NSN 6105-01-373-5812
NSN 6685-01-419-9738
NSN 6610-01-053-4400
NSN 5998-01-583-9254
NSN 5915-00-966-7668
NSN 6320-01-442-8604
NSN 5915-01-436-1876
NSN 5835-01-182-1966
NSN 5960-00-914-9277
NSN 5945-00-290-1779
NSN 6110-01-505-3414